Showing papers in "ICT Express in 2015"

TL;DR: This paper provides an inclusive and comprehensive analysis of recent developmental endeavors toward 5G and highlights salient features, i.e., flexibility, accessibility, and cloud-based service offerings, that are going to ensure the futuristic mobile communication technology as the dominant protocol for global communication.

TL;DR: Integrated radar-communication system based on multiple input and multiple output (MIMO) shares the hardware resource and spectrum to fulfill radar and communication functions, simultaneously.

TL;DR: A sound-based indoor and outdoor environment detection method to realize seamless positioning handover for in-and-outdoor integrated positioning systems using a special chirp sound probe propagate by a speaker of a mobile device and collected back through a microphone of the device.

TL;DR: A novel technical beamforming system as a total radio solution across a wide range of holistic antenna and radio-frequency circuits design and cross-layer algorithm design to realize atmospheric beamforming coverage in 60 GHz communications.

TL;DR: A Multiple Input Signal Output (MISO) VLC system utilizing space–time block coding (STBC) to overcome the signal interference due to multiple inputs and reveals great improvement in the robustness and compatibility of LED based network system.

TL;DR: A throughput optimal D2D operation guideline is provided for different network congestion environments on the basis of the analysis of the two aspects of throughput improvement.

TL;DR: The modified tone injection scheme exploits the agility of CR technology to rapidly adapt operating parameters in order to fulfill PAPR reduction as well as mitigation of power increase optimally.

TL;DR: Simulation results show that the multi-path routing protocol with attractor selection mechanism outperforms existing multi- path routing protocols in terms of packet delivery ratio, throughput and QoS.

TL;DR: This paper studies the power control problem in cognitive radio networks where a primary user and multiple secondary users (SUs) coexist and transforms the problem to a second-order cone programming problem, which can be efficiently solved by existing standard methods.

TL;DR: The pairing-free digital signature scheme of Islam et al. is cryptanalyze, which is proven secure against “adaptive chosen message attacks” and general security issues that should be considered when making improvements on their scheme.

TL;DR: This paper uses timed automata of the model-checker UPPAAL to capture the abstract behavior of communication medium, sane, and greedy nodes in WSN, which enables the use of analysis tools to check whether these models satisfy intended properties.

TL;DR: This paper considers a multi-user multiple-input multiple-output (MIMO) channel that includes one base station and two user terminals and proposes a QoE-based mode selection algorithm by mapping the R–E pair to the utility functions.

TL;DR: The proposed online algorithm in this paper reduces computational complexity significantly, although the proposed algorithm has negligible performance degradation compared to conventional schemes.

TL;DR: The detailed technology of power-line infra, regulator, and pick-up device is described for train application and implementation and experimental results for wireless power transfer electric tram are presented.

TL;DR: The adaptive hybrid filter significantly outperformed the basic Kalman filter, and a particle filter in the performance evaluation at three test places: a Library and N5 building, KAIST, Daejeon, and an E-mart mall, Seoul.

TL;DR: This tutorial, written for interested readers who have no solid background in software defined radio, virtual instrumentation and SoC technology, surveys the SDE theory, uses a step-by-step approach for the derivation of BB equivalents and demonstrates the application of SDE concept in scientific research, prototyping and education.

TL;DR: Filter bank multiple carrier (FBMC) technology is one of the alternative solutions for multicarrier modulation and to apply FBMC to LDM system, log-likelihood ratio (LLR) calculation scheme for FBMC is needed for LDPC decoding.

TL;DR: In this paper, a game theoretic algorithm along with dynamic channel allocation and hybrid access mechanism with self-organizing power control scheme is proposed to resolve prioritized access issue, the concept of primary and secondary users is applied.

TL;DR: A novel root-index based prioritized random access (RIPRA) scheme that implicitly embeds the access priority in the root index of the RA preambles and can successfully support differentiated performance for different access priority levels.

TL;DR: A hologram generated with the proposed method is referred to as the "Enhanced Sampled Binary Hologram" (ESBH), which is superior in visual quality as compare with the one obtained with existing technique, and also resistant to noise contamination.

TL;DR: It was shown via simulation that the proposed technique can achieve effective SINR and BER performances similar to the ideal case (no TDoA), even in WMNs with large TDoAs.

TL;DR: A perimeter to area ratio of WS is utilized for channel assignment as a criterion for evaluating value of remaining WS in the environment in which secondary users share the same spectrum with multiple channels.

TL;DR: Results show that in real scenarios, the synergy between WiMAX and WiFi leads to a high mean capacity (and in some cases, a 15-fold increase), and in terms of power levels, the dissipation by a user corresponds to less than 23% of the total available power.

TL;DR: A novel tapped delay line array antenna combined with orthogonal matched filter detector is proposed and it is shown that the proposed system can reduce interference signal even if the interference signal has equivalent pulse shape and equivalent incoming direction.

TL;DR: The presented results indicate that with a moderate front-to-back-ratio scenario for the antenna array, “small” antenna arrays with 8 elements can lower the requirement of full duplex self-interference cancellation by up to 55 dB, while large antenna arrays of 1024 elements will produce 100 dB reduction.

TL;DR: Experimental results confirm that the average calculation time for one-object point has been reduced and the loading time of the N-point PFPs on the GPU can be dramatically reduced, which results in a great increase of the computational speed of the proposed method.

TL;DR: In this article, generalized frequency division multiple access (GFDMA) is compared with the conventional single-carrier FDMA (SC-FDMA) in terms of the uplink sum rate when both techniques are adapted for the asynchronous scenario.

TL;DR: An optimal joint bandwidth and power allocation method for heterogeneous wireless networks (HetNets) is proposed by maximizing the users’ quality of experience (QoE) by taking two factors into consideration simultaneously: Rate Factor (RF) and Energy Factor (EF).