Showing papers by "Jiaguo Yu published in 2023"
TL;DR: In this article , pore-forming engineering has been employed to perforate graphene and concurrently achieve the in situ growth of Co3Se4 nanoparticles, enabling the fast diffusion of electrolyte ions in the longitudinal direction.
Abstract: Graphene‐based nanomaterials have sprung up as promising anode materials for sodium‐ion batteries due to the intriguing properties of graphene itself and the synergic effect between graphene and active materials. However, the 2D graphene sheet only allows the rapid diffusion of sodium ions along the parallel direction while that of the vertical direction is difficult, limiting the rate capability of graphene‐based electrode materials. To tackle this problem, pore‐forming engineering has been employed to perforate graphene and concurrently achieve the in situ growth of Co3Se4 nanoparticles. The generation of in‐plane nanohole breaks through the physical barriers of the graphene nanosheets, enabling the fast diffusion of electrolyte ions in the longitudinal direction. In addition, this design limits the aggregation of Co3Se4 nanoparticles because of the high affinity of Co3Se4 on graphene. Benefiting from the high conductivity and fast ion transport bestowed by the ingenious architecture, the Co3Se4/holey graphene exhibits a remarkable rate performance of 519.5 mAh g−1 at 5.0 A g−1 and desirable cycle stability. Conclusions drawn from this investigation are that the transport of sodium inside the graphene‐based composites is crucial for rate performance enhancement and this method is effective in modifying graphene‐based nanomaterials as potential anode materials.
13 citations
TL;DR: ZnIn2S4@BiVO4 is constructed as a model catalyst for photocatalytic H2O2 production in non-sacrificial systems in this paper , where the electron spin resonance spectroscopy results, in combination with scavenger capture experiments, reveal the discovery of an overlooked pathway.
Abstract: Solar H2O2 generated from O2 and H2O is an economical and green protocol. However, most photocatalysts only perform well in the presence of sacrificial donors or the photocatalysts are composed by organic materials, thus hindering their applicability. Herein, an inorganic matrix, i.e. ZnIn2S4@BiVO4 ([email protected]), is constructed as a model catalyst for photocatalytic H2O2 production in non-sacrificial systems. Excellent performance (1.8 mmol g−1 h−1) under visible-light is realized, and an apparent quantum yield of 5.18% is realized at 420 nm. Thorough investigation helps us to rationalize its exceptional performance and structural characteristics. Of note, the electron spin resonance spectroscopy results, in combination with scavenger capture experiments, reveal the discovery of an overlooked pathway. Specifically, except for the well-known two-electron oxygen reduction reaction (ORR), the involvement of 1O2 intermediate is verified during the H2O2 generation. Beyond presenting high performance of the inorganic composites, this finding also discloses a different reaction path for H2O2 production.
12 citations
TL;DR: In this paper , a bifunctional photocatalytic system for simultaneous production of self-separated hydrogen and benzaldehyde was presented, which not only enhances light absorption but also facilitates photogenerated carrier transfer.
Abstract: The sluggish oxygen evolution reaction (OER) is often the bottleneck of photocatalytic overall water splitting, greatly suppressing the hydrogen-production activity. Herein, the slow OER was replaced by selective benzyl alcohol (BA) oxidation to benzaldehyde (BD) to promote H2 production. The photocatalytic reaction was conducted over CdS quantum dots, which were modified with Co2+ hole cocatalysts to further accelerate the rate-limiting BA oxidation. The photocatalytic system exhibits an ultra-high H2-production rate of 257.8 mmol g−1 h−1 with a remarkable apparent quantum yield of 69.3% under 365-nm light irradiation. The high performance is attributed to the Co2+ hole cocatalysts on CdS surfaces, which not only enhance light absorption but also facilitate photogenerated carrier transfer. More importantly, both photogenerated electrons and holes are fully utilized in meaningful reactions. This work exemplifies a bifunctional photocatalytic system for simultaneous production of self-separated hydrogen and benzaldehyde, both of which are important industrial products.
8 citations
TL;DR: In this paper , NiCo 2 O 4 nanowires were in-situ synthesized on nickel foam (NF) by a simple hydrothermal reaction and then decorated with platinum nanoparticles (NPs).
6 citations
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TL;DR: In this paper , a real-time fiber-THz-fiber 2 × 2 multiple-input multiple-output (MIMO) seamless integration system at 340-510 GHz using commercial digital coherent optics (DCO) modules for baseband signals processing was proposed and experimentally demonstrated.
Abstract: We propose and experimentally demonstrate a real-time fiber-THz-fiber 2 × 2 multiple-input multiple-output (MIMO) seamless integration system at 340–510 GHz using commercial digital coherent optics (DCO) modules for baseband signals processing, which realizes a record net rate of 103.125 Gb/s dual polarization quadrature-phase-shift-keying (DP-QPSK) signals delivery over two spans of 20 km wireline single-mode fiber-link and 3 m wireless 2 × 2 MIMO link without using THz power amplifier under 15% soft-decision forward-error-correction threshold (SD-FEC) of 1.56 × 10−2. Two kinds of THz-to-optical conversion schemes based on an integrated dual-polarization Mach-Zehnder modulator (DP-MZM) and two discrete intensity-modulators (IMs) are extensively investigated and compared. To the best of our knowledge, this is the first real-time demonstration of THz-wireless and 100 GbE fiber-optic networks seamless integration transmission, which is compatible with IEEE 802.3 and ITU-T G.798 specifications. It is a promising scheme to meet the demands of future fiber-wireless-integrations communication for low power consumption, low cost and miniaturization.
6 citations
TL;DR: Femtosecond transient absorption spectroscopy (fs-TAS) is a powerful technique for monitoring the electron transfer kinetics in photocatalysis as mentioned in this paper , and several important works have successfully elucidated electron transfer mechanism in heterojunction photocatalysts (HPs).
6 citations
TL;DR: In this article , a self-assembly approach was used to synthesize an S-scheme heterojunction photocatalyst with high charge separation efficiency and excellent photocatalytic activity.
6 citations
TL;DR: In this article , a facile and scalable FeS/NC composite was constructed by decorating N, S co-doped carbon to achieve a reversible specific capacity of 387 mAh g−1 after 1000 cycles at 5A g −1 in dimethyl ether electrolyte.
3 citations
TL;DR: In this article , a series of cadmium sulfide/pyrene-alt-difluorinated benzothiadiazole heterojunctions were constructed and the photophysical processes were investigated with femtosecond transient absorption spectroscopy.
Abstract: The S-scheme heterojunction is flourishing in photocatalysis because it concurrently realizes separated charge carriers and sufficient redox ability. Steady-state charge transfer has been confirmed by other methods. However, an essential part, the transfer dynamics in S-scheme heterojunctions, is still missing. To compensate, a series of cadmium sulfide/pyrene-alt-difluorinated benzothiadiazole heterojunctions were constructed and the photophysical processes were investigated with femtosecond transient absorption spectroscopy. Encouragingly, an interfacial charge-transfer signal was detected in the spectra of the heterojunction, which provides solid evidence for S-scheme charge transfer to complement the results from well-established methods. Furthermore, the lifetime for interfacial charge transfer was calculated to be ca. 78.6 ps. Moreover, the S-scheme heterojunction photocatalysts exhibit higher photocatalytic conversion of 1,2-diols and H2 production rates than bare cadmium sulfide.
3 citations
DOI•
TL;DR: In this paper , an echo state network (ESN) based equalizer is applied to perform signal equalization in a wireless D-band communication system to compensate for the nonlinear distortion.
Abstract: Reservoir computing (RC) is a novel computational framework derived from recurrent neural networks (RNN). It can reduce the training complexity of RNN and is suitable for time-series learning tasks. The echo state network (ESN) is one of the most popular forms of RC. In this paper, an ESN-based equalizer is applied to perform signal equalization in a wireless D-band communication system to compensate for the nonlinear distortion. Based on the photonics-based technology and multiple amplifiers, a long-range wireless transmission system is successfully established at D-band. We experimentally demonstrated that our proposed wireless transmission link can realize up to 4.6-km wireless delivery of over 8 Gbit/s quadrature phase shift keying (QPSK) millimeter-wave signal at 135 GHz with a bit-error-rate (BER) less than the hard decision forward error correction (HD-FEC) threshold of 3.8 × 10−3. Compared with the traditional CMA equalizer and the Volterra equalizer, the experimental results show that the ESN-based equalizer can achieve a better balance between the BER performance and the computational complexity.
TL;DR: In this paper , a core@shell structure of metallic Ni@O-riched Ni layer (Ni@NiO-Ni) pre-electrocatalyst was established, which possesses a unique self-adaptable ability for the potential-dependent reconstruction to generate actual active sites for catalytic reactions.
TL;DR: In this paper , a COF (denoted as BTTA) was synthesized by Schiff base condensation and in-situ grown on the surface of TiO2 nanofibers.
Abstract: Coupling photocatalytic H2O2 evolution with simultaneous furfuryl alcohol oxidation can avoid the slow water oxidation reaction and fully utilize photogenerated carriers to produce valuable chemicals. Herein, a COF (denoted as BTTA) was synthesized by the Schiff-base condensation and in-situ grown on the surface of TiO2 nanofibers. The resultant TiO2/BTTA composite has a large interface and a short carrier migration distance. Furthermore, the porous and ultrathin BTTA layers endow the composites abundant active sites and excellent light absorption ability. Remarkably, a H2O2-evolution rate of 740 μmol L−1 h−1 and a furoic alcohol conversion of 96 % are achieved. In-situ irradiated X-ray photoelectron spectroscopy and electron spin resonance confirm the S-scheme carrier transfer mechanism, which spatially separates photogenerated carriers with strong redox power. This work opens a new door to the rational design of S-scheme photocatalysts for economic and green photosynthesis of H2O2 and organic compounds.
DOI•
TL;DR: In this paper , a low-cost intensity-modulated direct detection (IM/DD) system for the transmission of high-order QAM signals at millimeter-wave (MMW) band at 87 GHz is presented.
Abstract: We present a low-cost intensity-modulated direct detection (IM/DD) system for the transmission of high-order QAM signals at millimeter-wave (MMW) band at 87 GHz. The system uses photon-assisted MMW generation techniques to transmit modulated signals and receive signals through low-cost envelope detection. Discrete multi-tone (DMT) signals up to 8192QAM are modulated into a one-bit quantized on/off keying (OOK) signal with delta-sigma modulation (DSM) to avoid envelope detector saturation effects and reduce nonlinear noise interference. Additionally, multi-level digital-to-analog converters (DACs) are not required. The 87 GHz W-band signal can transmit data at a baud rate of 12 G over a wireless propagation range of 1.2 m. The experimental results show that the bit error ratio (BER) of the 1024QAM signal can reach the hard decision forward error correction (HD-FEC) threshold, and the BER of the 8192QAM signal can reach the soft decision forward error correction (SD-FEC) threshold. To our knowledge, this is the first time that the DSM modulation format is used in the IM/DD W-band wireless transmission system.
TL;DR: In this paper , a three-dimensional separator was designed by embedding Co3Se4 nanoparticles on nitrogen-doped porous carbon by high-temperature selenization of ZIF-67, which are compounded with Ti3C2Tx by electrostatic dispersion self-assembly.
Abstract: As electronic equipment develops rapidly, higher requirements are placed on electrochemical energy-storage devices. These requirements can be met by a lithium-sulfur (Li-S) battery since it has an impressive energy density of 2600 Wh kg-1 and a high theoretical specific capacity of 1675 mAh g-1. Pitifully, the sluggish redox reaction kinetics and the shuttle effect of polysulfide seriously limit its applications. Separator modification has been proven to be an effective strategy for improving the performance of Li-S batteries. Herein, we have designed a competent three-dimensional separator. It is obtained by embedding Co3Se4 nanoparticles on nitrogen-doped porous carbon (Co3Se4@N-C) by high-temperature selenization of ZIF-67, which are compounded with Ti3C2Tx by electrostatic dispersion self-assembly, and the compound is used to adjust the surface properties of a polypropylene (PP) separator. Due to the synergistic effect of the superior catalytic performance of Co3Se4@N-C and the enhancement of adsorption and conductivity bestowed by Ti3C2Tx, lithium-sulfur batteries perform excellently with the modified PP separator. Specifically, the battery with a Co3Se4@N-C/Ti3C2Tx-modified PP separator exhibits an outstanding rate performance of 787 mAh g-1 at 4C, and stable performance is maintained after 300 cycles at 2C. The density functional theory (DFT) calculations are also performed to confirm the synergistic effect of Co3Se4@N-C and Ti3C2Tx. This design integrates the merits of catalysis and adsorption and provides a new method for constructing high-performance lithium-sulfur batteries.
TL;DR: In this paper , the authors summarized the recent advances of step-scheme heterojunctions for H2O2 production, including photocatalysts for building S-Scheme Heterojunctions, H 2O2-production performance, and future research directions are suggested.
Abstract: Photocatalysis opens a new door to H2O2 formation via a low-cost, clean, mild, and sustainable process, which holds great promise for the next generation of massive H2O2 production. However, fast photogenerated electron-hole recombination and slow reaction kinetics are the main obstacles for its practical application. An effective solution is to construct the step-scheme (S-scheme) heterojunction, which remarkably promotes carrier separation and boosts the redox power for efficient photocatalytic H2O2 production. Considering the superiority of S-scheme heterojunctions, this Perspective summarizes the recent advances of S-scheme photocatalysts for H2O2 production, including photocatalysts for building S-scheme heterojunctions, H2O2-production performance, and S-scheme photocatalytic mechanisms. Lastly, some prospects are given to motivate future research in this promising field, other promising strategies are provided to further improve H2O2 yields, and future research directions are suggested.
TL;DR: In this article , the authors demonstrated a real-time 100-GbE fiber-wireless seamless integration system operating at the whole W band (75-110 GHz) based on a pair of commercial digital coherent optical modules.
Abstract: This Letter demonstrates a real-time 100-GbE fiber-wireless seamless integration system operating at the whole W band (75-110 GHz). Based on a pair of commercial digital coherent optical modules, the real-time transparent transmission of 125-Gb/s dual-polarized quadrature phase-shift keying signal has been successfully achieved over two-spans of 20-km fiber and up to 150-m electromagnetic dual-polarized single-input single-output wireless link. To the best of our knowledge, this is the first real-time demonstration of 100-GbE signal transmission over >100-m wireless distance at the millimeter-wave band based on photonics. We believed this real-time and high-speed fiber-wireless seamless integration system with a wireless coverage up to hundreds of meters can significantly accelerate the progress of upcoming 6G.
01 Mar 2023
TL;DR: In this article , a photonics-aided mm-wave communication system was proposed to achieve W-band long-distance transmission of PDM-1024QAM/2048QAM signals over 4.6 km by using a PTFE lenses and Delta-Sigma Modulator (DSM).
Abstract: In a photonics-aided mm-wave communication system, we successfully achieved W-band long-distance transmission of PDM-1024QAM/2048QAM signals over 4.6 km by using a PTFE lenses and Delta-Sigma Modulator (DSM).
01 Mar 2023
TL;DR: In this paper , the authors demonstrate the first real-time 125-Gb/s DP-QPSK signal delivery over a 150m dual-polarized single-channel wireless link with a record of realtime transmission capacity and wireless distance at W band.
Abstract: In a photonics-enabled fiber-wireless-fiber system, we successfully demonstrate the first real-time 125-Gb/s DP-QPSK signal delivery over a 150-m dual-polarized single-channel wireless link with a record of real-time transmission capacity and wireless distance at W band.
TL;DR: In this article , a few-layer violet phosphorene (VP) was used as a giant phosphorus ligand to confine Ni single-atoms via a photoreduction approach, and combined experimental analysis and density-functional theory calculations confirmed that VP nanosheets covalently stabilized monovalent Ni (I) single-atom in a Ni-P4 atomic configuration.
TL;DR: In this article , the authors investigated the effect of charge transfer in the straddle heterojunction architecture of BiVO4, La1-xSrxFeO3-δ (x = 0, 0.2, and 0.4) perovskites on the performance of photo-induced charge transfer.
TL;DR: In this paper , a low-complexity probabilistic shaping (PS) 16-ary quadrature amplitude modulation (16QAM) scheme based on intra-symbol bit-weighted distribution matching (Intra-SBWDM) for discrete multi-tone (DMT) symbols with field-programmable gate array implementation in an intensity modulation and direct detection (IM-DD) system was demonstrated.
Abstract: We experimentally demonstrated a low-complexity probabilistic shaping (PS) 16-ary quadrature amplitude modulation (16QAM) scheme based on intra-symbol bit-weighted distribution matching (Intra-SBWDM) for discrete multi-tone (DMT) symbols with field-programmable gate array implementation in an intensity modulation and direct detection (IM-DD) system. Different from the traditional PS scheme such as Gallager many-to-one mapping, hierarchical distribution matching and constant composition distribution matching, the Intra-SBWDM scheme with lower computation and hardware complexity does not need to continuously refine the interval to find the target symbol probability, nor does it need a look-up table, so it does not introduce a large number of extra redundant bits. In our experiment, four PS parameter values (k = 4, 5, 6, and 7) are investigated in a real-time short-reach IM-DD system. 31.87-Gbit/s net bit PS-16QAM-DMT (k = 4) signal transmission is achieved. The results show that the receiver sensitivity in terms of the received optical power of the real-time PS scheme based on Intra-SBWDM (k = 4) over OBTB/20 km standard single-mode fiber can be improved by about 1.8/2.2 dB at the bit error rate (BER) of 3.8 × 10-3, compared to the uniformly-distributed DMT. In addition, the BER is steadily lower than 3.8 × 10-3 during a one-hour measurement for PS-DMT transmission system.
TL;DR: In this article , a real-time intensity modulation and direct detection (IM/DD) system based on a field programmable gate array (FPGA) was demonstrated, where the simplified parallel-constant modulus algorithm (CMA) and decision-directed least mean square (DDLMS) equalizers with low complexity and low latency were implemented with very few hardware resources.
Abstract: In this experiment, we demonstrate a real-time intensity modulation and direct detection (IM/DD) system based on a field programmable gate array (FPGA). For high-speed parallel signal processing, we propose and implement the simplified parallel-constant modulus algorithm (CMA) and decision-directed least mean square (DDLMS) equalizers with low complexity and low latency. Moreover, the bit-class probabilistic shaping (PS) scheme is adopted with very few hardware resources. The digital signal processing (DSP) steps are implemented in the XCVU9P-FLGB2104-2-I Xilinx FPGA with a clock frequency of 230.4 MHz. Based on the experimental results, 4 × 29.4912 Gbit/s PS-pulse amplitude modulation (PAM4) signals can be successfully transmitted over 25 km of standard single-mode fiber (SSMF) while satisfying the hard-decision forward error correction (HD-FEC) threshold at 3.8 × 10-3. Compared with the uniformly distributed PAM4 signal, the low-complexity PS scheme can improve the receiver sensitivity by more than 1 dB.
TL;DR: In this paper , a fiber-wireless-integration system with high-gain lens horn antenna modules consisting of a pair of dielectric plano-convex lenses and horn antennas for long-haul wireless links is presented.
Abstract: In this article, we have experimentally demonstrated a fiber-wireless-integration $D$ -band (110–170 GHz) transmission system. To extend the wireless transmission distance while maintaining the wireless bit rate as high as possible, we designed high-gain lens horn antenna modules consisting of a pair of dielectric plano-convex lenses and horn antennas for long-haul wireless links. In addition, we employ the Volterra nonlinear equalization (VNE) algorithm based on the multiple-input–multiple-output (MIMO) structure to precisely compensate for the in-phase/quadrature (I/Q) imbalance and nonlinear impairment of quadrature amplitude modulation (QAM) signals mainly caused by photoelectric (O-E) conversion and electric-photo (E-O) conversion. Meanwhile, one of the methods adopted in our experiment to decrease the influence of nonlinearity on high-order QAM signals is coupling the high-order modulation format with the probabilistic shaping (PS) technology. As a result of outdoor field experimental verification, the demonstration at 135 GHz carrier with a net rate of 23.1 Gb/s over 10 km optic-fiber and 4.6 km wireless transmission distance has been successfully carried out. It is, as we know, the first time that a record-breaking product of net bit rate and wireless transmission distance, i.e., 23.1 Gb/s $\times$ 4.6 km $=$ 106.3 Gb/s $\cdot$ km, has been accomplished based on a fiber-wireless-integration system. Also, for the first time, we have measured the effect of rain attenuation for the 135 GHz millimeter-wave (mm-wave) wireless link and established more accurate rainfall models for the Shanghai region of China by comparing them with multiple rainfall models. This work can be used as a complement to the International Telecommunication Union-Radiocommunication sector (ITU-R) recommendations.
TL;DR: In this article , a single-atom Pt anchored on 3D hierarchical TiO2 -Ti3 C2 with atomic-scale interface engineering is successfully synthesized through an in situ transformation and photoreduction method.
Abstract: Solar-driven CO2 conversion into valuable fuels is a promising strategy to alleviate the energy and environmental issues. However, inefficient charge separation and transfer greatly limits the photocatalytic CO2 reduction efficiency. Herein, single-atom Pt anchored on 3D hierarchical TiO2 -Ti3 C2 with atomic-scale interface engineering is successfully synthesized through an in situ transformation and photoreduction method. The in situ growth of TiO2 on Ti3 C2 nanosheets can not only provide interfacial driving force for the charge transport, but also create an atomic-level charge transfer channel for directional electron migration. Moreover, the single-atom Pt anchored on TiO2 or Ti3 C2 can effectively capture the photogenerated electrons through the atomic interfacial PtO bond with shortened charge migration distance, and simultaneously serve as active sites for CO2 adsorption and activation. Benefiting from the synergistic effect of the atomic interface engineering of single-atom Pt and interfacial TiOTi, the optimized photocatalyst exhibits excellent CO2 -to-CO conversion activity of 20.5 µmol g-1 h-1 with a selectivity of 96%, which is five times that of commercial TiO2 (P25). This work sheds new light on designing ideal atomic-scale interface and single-atom catalysts for efficient solar fuel conversation.
01 Jun 2023
TL;DR: In this article , a highly responsive formaldehyde sensor of In2O3@ZnO derived from MIL-68(In)@ZIF-8 precursor was successfully prepared.
Abstract: As we all know, formaldehyde (HCHO) is extremely harmful to human health and has been identified as a primary carcinogen by the World Health Organization. Therefore, there is an urgent need to design efficient formaldehyde-sensing materials. In this work, a highly responsive formaldehyde sensor of In2O3@ZnO derived from MIL-68(In)@ZIF-8 precursor was successfully prepared. By adjusting the ratio of In2O3 and ZnO, it can be found that the performance of the resulting sensor has greatly improved under 100 ppm HCHO at an operating temperature of 220 °C and the detection limit can be as low as 4 ppb. Additionally, it also has excellent selectivity (Q≥10), anti-interference (the deviation value≤3.5%), and long-lasting stability (the variation value≤4%). Such distinguished sensing performance can be attributed to the metal-organic framework (MOF) derived step-scheme (S-scheme) heterojunction, which ultimately increases the adsorption of oxygen and HCHO. This work verifies that ingenious heterojunction construction can significantly improve gas sensing performance.
TL;DR: In this paper , a 65,536-ary quadrature amplitude modulation (QAM) orthogonal frequency division multiplexing (OFDM) signal supported by a hybrid fiber-terahertz (THz) multiple-input multiple-output (MIMO) system at 320 GHz is experimentally demonstrated.
Abstract: The transmission of a 65,536-ary quadrature amplitude modulation (QAM) orthogonal frequency division multiplexing (OFDM) signal supported by a hybrid fiber-terahertz (THz) multiple-input multiple-output (MIMO) system at 320 GHz is experimentally demonstrated in this Letter. We adopt the polarization division multiplexing (PDM) technique to double the spectral efficiency. Based on a 23-GBaud 16-QAM link, 2-bit delta-sigma modulation (DSM) quantization enables 65,536-QAM OFDM signal transmission over a 20-km standard single-mode fiber (SSMF) and a 3-m 2 × 2 MIMO wireless delivery, and satisfies the hard-decision forward error correction (HD-FEC) threshold of 3.8 × 10-3, corresponding to a net rate of 60.5 Gbit/s for THz-over-fiber transport. Meanwhile, below the fronthaul error vector magnitude (EVM) threshold of 0.34%, a maximum signal-to-noise ratio (SNR) of 52.6 dB is achieved. To the best of our knowledge, this is the highest modulation order achievable for DSM applications in THz communication.
01 Mar 2023
TL;DR: In this paper , a W-band photon-assisted millimeter-wave transmission system using delta-sigma modulation and envelope detection was proposed, and the proposed IM/DD-MMW-RoF system can support 8192 QAM signaling over a 20-meter wireless link using DSM.
Abstract: We experimentally demonstrate a W-band photon-assisted millimeter-wave transmission system using delta-sigma modulation and envelope detection. The proposed IM/DD-MMW-RoF system can support 8192 QAM signaling over a 20-meter wireless link using DSM while meeting the SD-FEC threshold of 4.2×10-2.