Search results for: Beixiong Zheng

Items from 1 to 18 out of 18 results

article

The K-Best Sphere Decoding for Soft Detection of Generalized Spatial Modulation

Beixiong Zheng, Miaowen Wen, Fangjiong Chen, Nuo Huang, more

IEEE Transactions on Communications > 2017 > 65 > 11 > 4803 - 4816

Due to the interchannel interference and the varying active antennas in generalized spatial modulation (GSM), it is challenging to detect the transmitted data effectively while imposing low computational burden to the receiver. In this paper, we propose a novel algorithm based on the K-best sphere decoding for the soft detection of the GSM signal, which performs the breadth-first tree search in two...

article

NOMA-Based Multi-Pair Two-Way Relay Networks With Rate Splitting and Group Decoding

Beixiong Zheng, Xiaodong Wang, Miaowen Wen, Fangjiong Chen

IEEE Journal on Selected Areas in Communications > 2017 > 35 > 10 > 2328 - 2341

In this paper, we develop a non-orthogonal multiple access (NOMA)-based multi-pair two-way relay (TWR) network, in which a rate splitting scheme and a successive group decoding strategy are employed. By exploiting the interference signals received from neighbor users with the leverage of the full-duplex technique, we enhance the decoding ability of each user and further achieve an effective multiuser...

article

Multiple-Mode Orthogonal Frequency Division Multiplexing With Index Modulation

Miaowen Wen, Ertugrul Basar, Qiang Li, Beixiong Zheng, more

IEEE Transactions on Communications > 2017 > 65 > 9 > 3892 - 3906

Orthogonal frequency division multiplexing with index modulation (OFDM-IM) performs transmission by considering two modes over OFDM subcarriers, which are the null and the conventional

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-ary signal constellation. The spectral efficiency (SE) of the system, however, is limited, since the null mode itself does not carry any information and the number of subcarrier activation patterns increases combinatorially...

chapter

Low-Complexity Detector and Performance Analysis for Enhanced Receive Spatial Modulation under High Mobility

Beixiong Zheng, Miaowen Wen, Fangjiong Chen, Peng Chen, more

2017 IEEE 85th Vehicular Technology Conference (VTC Spring) > 1 - 6

2017 IEEE 85th Vehicular Technology Conference: VTC2017-Spring

Recently, a new multiple-input multiple-output (MIMO) transmission scheme termed as receive spatial modulation (RSM) is proposed, which activates a subset of receive antennas to carry additional information bits through the index domain. In this paper, a novel variant of RSM, which is referred to as enhanced RSM (ERSM), is proposed to further improve the system performance, especially in high-mobility...

article

Soft Demodulation Algorithms for Generalized Spatial Modulation Using Deterministic Sequential Monte Carlo

Beixiong Zheng, Xiaodong Wang, Miaowen Wen, Fangjiong Chen

IEEE Transactions on Wireless Communications > 2017 > 16 > 6 > 3953 - 3967

Generalized spatial modulation (GSM) is a relatively new multi-input multi-output transmission technique that enables a flexible trade-off between the achievable transmission rate and the cost of radio frequency chains. However, due to the constraint of transmit antenna combination and the variation of interchannel interference, the efficient low-complexity demodulation of GSM signals is challenging,...

article

Multiple-Input Multiple-Output OFDM With Index Modulation: Low-Complexity Detector Design

Beixiong Zheng, Miaowen Wen, Ertugrul Basar, Fangjiong Chen

IEEE Transactions on Signal Processing > 2017 > 65 > 11 > 2758 - 2772

Multiple-input multiple-output orthogonal frequency division multiplexing with index modulation (MIMO-OFDM-IM), which provides a flexible trade-off between spectral efficiency and error performance, is recently proposed as a promising transmission technique for energy-efficient 5G wireless communications systems. However, due to the dependence of subcarrier symbols within each subblock and the strong...

chapter

Low-complexity near-optimal detector for multiple-input multiple-output OFDM with index modulation

Beixiong Zheng, Miaowen Wen, Ertugrul Basar, Fangjiong Chen

2017 IEEE International Conference on Communications (ICC) > 1 - 6

ICC 2017 - 2017 IEEE International Conference on Communications

Multiple-input multiple-output orthogonal frequency division multiplexing with index modulation (MIMO-OFDM-IM), which provides a flexible trade-off between spectral efficiency and error performance, is recently proposed as a promising transmission technique for energy-efficient 5G wireless communication systems. However, due to the dependence of subcarrier symbols within each subblock and the strong...

article

Design of two-dimensional signal constellations for visible light communication

Nuo Huang, Jun-Bo Wang, Beixiong Zheng, Rui Guan, more

Optics Communications > 2017 > 385 > C > 167-171

This paper investigates a two-dimensional signal space for visible light communication (VLC) by taking into account some practical constraints. We first present the relationship between the signal space and basis functions, and then find the basis function yielding the largest signal space. Besides, to improve the symbol error rate (SER) performance of the system, we design the constellations by maximizing...

article

Vector OFDM With Index Modulation

Yun Liu, Fei Ji, Miaowen Wen, Dehuan Wan, more

IEEE Access > 2017 > 5 > 20135 - 20144

The concept of index modulation (IM) has gained increased attention in recent years. As a member of the IM family, orthogonal frequency division multiplexing with index modulation (OFDM-IM), which is able to convey additional information bits using the indices of the active subcarriers, has emerged as an attractive physical layer transmission technique. Vector OFDM (V-OFDM) has inherently good peak-to-average-power...

article

Minimum Symbol-Error Rate Based Adaptive Decision Feedback Equalizer in Underwater Acoustic Channels

Fangjiong Chen, Shaoe Lin, Beixiong Zheng, Qiang Li, more

IEEE Access > 2017 > 5 > 25147 - 25157

Adaptive linear equalizer, whose coefficients are designed to be adjustable to the channel impulse response, has emerged as a simple and efficient technique to adaptively compensate for the channel fading. However, conventional adaptive linear equalizers suffer from performance degradation and slow convergence in the underwater acoustic channel with large delay spread. To solve this problem, in this...

article

Enhanced Coordinate Interleaved OFDM With Index Modulation

Yun Liu, Fei Ji, Hua Yu, Fangjiong Chen, more

IEEE Access > 2017 > 5 > 27504 - 27513

Orthogonal frequency-division multiplexing with index modulation (OFDM-IM) has attracted much attention in recent years. In OFDM-IM, the information bits of a block are generally divided into several subblocks, each of which is further split into two parts, i.e., the index bits and the symbol bits. By performing a coordinate interleaving operation over each two constellation symbols, the bit-error-rate...

article

Low-Complexity Subcarrier-Wise Detection for MIMO-OFDM With Index Modulation

Zeng Hu, Shaoe Lin, Beixiong Zheng, Fangjiong Chen, more

IEEE Access > 2017 > 5 > 23822 - 23832

Multiple-input multiple-output orthogonal frequency division multiplexing with index modulation (MIMO-OFDM-IM) is a relatively new multicarrier transmission technique for the MIMO systems to achieve both energy and spectral efficiency. However, due to the dependence of subcarrier symbols introduced by the index modulation, existing MIMO detection techniques cannot be applied in MIMO-OFDM-IM as it...

article

Novel Pilot Position Detection for SC-FDE Systems With Frequency Domain Pilot Multiplexing Technique

Miaowen Wen, Beixiong Zheng, Quansheng Guan, Fangjiong Chen, more

IEEE Signal Processing Letters > 2016 > 23 > 7 > 910 - 914

Frequency domain pilot multiplexing technique (FDPMT) has recently emerged as an appealing technique for channel estimation in single-carrier frequency domain equalization systems as it achieves high spectral efficiency at the expense of tiny signal distortion. In FDPMT, pilot positions are dynamically selected to achieve a relatively low level of signal distortion, rendering pilot position detection...

chapter

Novel signal reconstruction method for SC-FDE systems with frequency domain pilot multiplexing technique over time-varying channels

Beixiong Zheng, Miaowen Wen, Fangjiong Chen, Fei Ji, more

2016 International Conference on Computing, Networking and Communications (ICNC) > 1 - 6

2016 International Conference on Computing, Networking and Communications (ICNC)

The frequency domain pilot multiplexing technique (FDPMT) for channel estimation prevails in single-carrier frequency domain equalization (SC-FDE) systems for high spectral efficiency it promises. However, the bit error rate (BER) performance of the system with FDPMT can be significantly affected by the signal distortion level, which depends on the signal reconstruction (SR) ability of the receiver...

article

Novel Pilot Position Selection and Signal Reconstruction Methods for Frequency-Domain Pilot Multiplexing Techniques of SC-FDE

Beixiong Zheng, Fangjiong Chen, Miaowen Wen, Fei Ji, more

IEEE Transactions on Vehicular Technology > 2017 > 66 > 1 > 502 - 512

The frequency-domain pilot multiplexing technique (FDPMT) has recently emerged as an appealing technique for channel estimation in single-carrier frequency-domain equalization (SC-FDE) systems due to the high spectral efficiency it promises. However, the performance of the FDPMT system is significantly affected by the signal distortion level, which depends on the pilot position selection (PPS) strategy...

article

Low-Complexity ML Detector and Performance Analysis for OFDM With In-Phase/Quadrature Index Modulation

Beixiong Zheng, Fangjiong Chen, Miaowen Wen, Fei Ji, more

IEEE Communications Letters > 2015 > 19 > 11 > 1893 - 1896

A novel variant of orthogonal frequency division multiplexing (OFDM) techniques, which carries additional information bits through the index domain including in-phase and quadrature dimensions, is recently proposed. For its nature, we refer to this technique as OFDM with in-phase/quadrature index modulation (OFDM-I/Q-IM). In this letter, we propose a novel low-complexity detector based on the maximum-likelihood...

article

Novel Pilot Design and Signal Detection for SC-FDE Systems With Frequency-Domain Pilot Multiplexing Technique

Beixiong Zheng, Fangjiong Chen, Quansheng Guan, Miaowen Wen, more

IEEE Communications Letters > 2015 > 19 > 8 > 1466 - 1469

The performance of single-carrier frequency-domain equalization systems with the frequency-domain pilot multiplexing technique is affected by the level of signal distortion, which highly depends on the pilot position selection (PPS) scheme at the transmitter and the signal detection (SD) scheme at the receiver. In this letter, by exploring the relationship between distorted symbols and decision boundaries,...

chapter

Low-complexity minimum-SER channel equalization for OFDM underwater acoustic communications

Beixiong Zheng, Fangjiong Chen, Miaowen Wen, Fei Ji, more

2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) > 3019 - 3023

ICASSP 2015 - 2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

Orthogonal frequency division multiplexing (OFDM) is promising for underwater acoustic (UWA) communications as it is robust against large delay spread. However, OFDM suffers from intercarrier interference (ICI) caused by the serious Doppler effect in UWA channels. Attentive to the property that the ICI is mainly contributed by the adjacent subcarriers in UWA channels, in this paper, we propose a novel...

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