Journal ArticleDOI
Link-Adaptive Mapper Designs for Space-Shift-Keying-Modulated MIMO Systems
TLDR
Results show that the proposed mapping schemes can improve BER performance considerably in a wide range of SNR regimes and bring additional performance gain without incurring any extra cost on physical components (e.g., additional phase shifters or power amplifiers).Abstract:
This work focuses on the design and analysis of link-adaptive bits-to-antenna-indexes mapping for closed-loop space-shift keying (SSK)-modulated multiple-input multiple-output (MIMO) systems. With the aim of achieving a lower bit error rate (BER), optimal mappers are designed under different transmission conditions. Assuming that perfect channel state information (CSI) is available at the transceivers, an original binary switch algorithm (OBSA) is proposed. For the case in which there is no CSI at the transmitter and the feedback channel is bandwidth limited, a restricted binary switch algorithm (RBSA)-based mapping design is proposed. Both of the proposed algorithms can bring considerable performance gains but are of high computational complexity if there are a large number of transmit antennas. To overcome this, algorithms with reduced computational complexity are proposed and investigated, which are named partial OBSA and partial RBSA. The performance improvement brought by all of the proposed mapping schemes in terms of BER performance enhancement and signal-to-noise ratio (SNR) gain in a high-SNR regime is theoretically given. Simulations are done to validate the theoretical analysis, and results show that the proposed schemes can improve BER performance considerably in a wide range of SNR regimes. In addition, all of the proposed mapping schemes can cowork with those existing transmit processing techniques and bring additional performance gain without incurring any extra cost on physical components (e.g., additional phase shifters or power amplifiers). All these make the proposed mapping schemes promising choices for the link-adaptive design of closed-loop SSK MIMO systems.read more
Citations
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Journal ArticleDOI
Reflecting Modulation
TL;DR: A discrete optimization-based joint signal mapping, shaping, and reflecting (DJMSR) design for JRM and SRM to minimize the bit error rate (BER) with a given transmit signal candidate set and a given reflecting pattern candidate set.
Journal ArticleDOI
Polarization Shift Keying (PolarSK): System Scheme and Performance Analysis
TL;DR: In this article, a generalized polarization shift keying (PolarSK) modulation scheme was proposed to increase the overall spectral efficiency of a single-radio-frequency (RF) MIMO system.
Journal ArticleDOI
Generalized 3-D Constellation Design for Spatial Modulation
TL;DR: Results show that the proposed 3-D constellation design is a generalized design scheme and can be adopted in any SM/GSM systems without constraints on the number of transceiver antennas and offers better symbol-error-rate performance than other solutions.
Journal ArticleDOI
Polarization Shift Keying (PolarSK): System Scheme and Performance Analysis
TL;DR: A generalized polarization shift keying (PolarSK) modulation scheme that uses polarization states in the dual-polarized transmit antenna as an information-bearing unit to increase the overall spectral efficiency and outperforms the state-of-the-art dual-Polarized/unipolarized SM schemes.
Journal ArticleDOI
Signal Shaping for Generalized Spatial Modulation and Generalized Quadrature Spatial Modulation
TL;DR: In this article, a unified optimization problem is formulated to find the optimal transmit vector set under size, power, and sparsity constraints, and an optimization-based signal shaping (OBSS) approach is proposed by solving the formulated problem directly and a codebook-based approach by finding the sub-optimal solutions in discrete space.
References
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Spatial Modulation
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Journal ArticleDOI
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Spatial modulation for multiple-antenna wireless systems: a survey
TL;DR: Spatial Modulation is a novel and recently proposed multiple-antenna transmission technique that can offer, with a very low system complexity, improved data rates compared to Single-Input- Single-Output (SISO) systems, and robust error performance even in correlated channel environments.
Journal ArticleDOI
Design Guidelines for Spatial Modulation
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