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BER analysis of MPSK space-time code with differential detection over correlated block-fading Rayleigh channel

The Journal of China Universities of Posts and Telecommunications 2008年第2期15卷 18-25页

作者： ZOU Yu-long ZHENG Bao-yu Institute of Signal Processing and Transmission Nanjing University of Postsand Telecommunications Nanjing 210003 China

MIMO technology proposed in recent years can effectively combat the multipath fading of wireless channel and can considerably enlarge the channel capacity, which has been investigated widely by researchers. However, its performance analysis over correlated block-fading Rayleigh channel is still an open and challenging objective. In this article, an analytic expression of bit error rate （BER） is presented for multiple phase shift keying （MPSK） space-time code, with differential detection over correlated block-fading Rayleigh channel. Through theoretical analysis of BER, it can be found that the differential space-time scheme without the need for channel state information （CSI） at receiver achieves distinct performance gain compared with the traditional nonspace-time system. And then, the system simulation is complimented to verify the above result, showing that the diversity system based on the differential space-time block coding （DSTBC） outperforms the traditional nonspacetime system with diversity gain in terms of BER. Furthermore, the numerical results also demonstrate that the error floor of the differential space-time system is much lower than that of the differential nonspace-time system.

关键词： differential space-time block code correlated blockfading Rayleigh channel CSI error floor

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Multiple-Symbol differential Sphere Detection Aided differential space-time block codes Using QAM Constellations

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IEEE SIGNAL PROCESSING LETTERS 2011年第9期18卷 497-500页

作者： Xu, Chao Wang, Li Ng, Soon Xin Hanzo, Lajos Univ Southampton Sch Elect & Comp Sci Southampton SO17 1BJ Hants England

We propose Multiple-Symbol differential Detection (MSDD) aided differential space-time block codes (DSTBCs) using QAM. Our solution eliminates the requirement of high-complexity MIMO channel estimation and its pilot overhead, while mitigating the potential performance degradation of noncoherent receivers in fast fading channels. Additionally, we develop Multiple-Symbol differential Sphere Detection (MSDSD) for the QAM aided DSTBC schemes advocated, in order to circumvent their potentially excessive complexity.

关键词： differential space-time block code multiple-symbol differential sphere detection QAM

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Distributed differential Quasi-Orthogonal space-time block coded System for Multiple-Relay Networks

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WIRELESS PERSONAL COMMUNICATIONS 2016年第4期87卷 1401-1414页

作者： Jo, Soonki Han, Jae-Shin Jeon, Sugnho Choi, Jeong-Min Seo, Jong-Soo Yonsei Univ Dept Elect & Elect Engn Seoul 120749 South Korea Korean Broadcasting Syst Tech Res Inst Seoul 150179 South Korea

In this paper, we present an efficient distributed differential quasi-orthogonal space-time block code (DD-QOSTBC) system for multiple relay networks. First, we propose the DD-QOSTBC transmission which considers two robust STBC-like subsystems in amplify-and-forward multiple relaying over flat fading channel. It is assumed that source has two antennas, and relays and destination have a single antenna. With robust STBC-like subsystem structure, we show that our robust subsystems can be used for an efficient joint suboptimal differential decoding based on a maximum likelihood criterion. Finally, we accomplish the performance evaluation on the proposed DD-QOSTBC system in terms of bit-error-rate.

关键词： Amplify-and-forward differential space-time block code Quasi-orthogonal space-time block code

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Single-RF Index Shift Keying Aided differential space-time block Coding

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IEEE TRANSACTIONS ON SIGNAL PROCESSING 2018年第3期66卷 773-788页

作者： Xu, Chao Rajashekar, Rakshith Ishikawa, Naoki Sugiura, Shinya Hanzo, Lajos Univ Southampton Sch Elect & Comp Sci Southampton SO17 1BJ Hants England Hiroshima City Univ Grad Sch Informat Sci Hiroshima 7313194 Japan Tokyo Univ Agr & Technol Dept Comp & Informat Sci Koganei Tokyo 1848588 Japan

We propose a new single-RF differential space-time block coding using index shift keying (DSTBC-ISK), which is the first differential space-time modulation (DSTM) scheme that can simultaneously achieve the following three imperative objectives: First, forming a finite-cardinality transmit-signals set;second, retaining a single-stream maximum-likelihood (ML) detection complexity;and third, offering a beneficial transmit diversity gain. In order to make a fair comparison, we also conceive a low-complexity single-stream detector for DSM. Furthermore, in order to improve the performance of finite-cardinality DSTM schemes at higher throughputs, we propose to generalize both differential amplitude shift keying (DASK) and amplitude shift keying (ASK), which subsume the existing two-/four-level-ring star quadratic-amplitude modulation (QAM) solutions as special cases. As a result of using star QAM signaling, the power of the DSTM's signal matrix becomes variable. Against this background, we further develop bespoke ML, minimum mean squared error, and least-square detectors for DSTM using DASK/ASK. Our simulation results demonstrate that the proposed DSTBC-ISK is capable of achieving substantial diversity gains over DSM without eroding its low transceiver complexity.

关键词： differential space-time modulation differential space-time block code differential spatial modulation group code star QAM single-RF single-stream detection

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An Improved differential space-time block Coding Scheme Based on Viterbi Algorithm

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IEEE COMMUNICATIONS LETTERS 2013年第9期17卷 1707-1709页

作者： Ben Slimane, Emna Jarboui, Slaheddine Bouallegue, Ammar Natl Engn Sch Tunis Lab Commun Syst Tunis Tunisia King Khalid Univ Coll Comp Sci Abha Saudi Arabia

This letter proposes a novel improved differential space-time block code (DSTBC) scheme. By introducing a specific redundancy mechanism, the proposed DSTBC encoder behaves as a second-order discrete Markov process that we model by a multilevel trellis diagram. At the receiver side, the well-known Viterbi algorithm is applied without channel state information (CSI). The new scheme completely compensates for the 3-dB penalty, over wide SNR range, noticed in conventional DSTBC scheme and shows a closer performance to coherent STBC.

关键词： differential space-time block code Viterbi algorithm trellis diagram

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Distributed Convolutional-coded differential space-time block Coding for Cooperative Communications

Distributed Convolutional-Coded Differential Space-Time Bloc...

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2010 IEEE 71st Vehicular Technology Conference

作者： Ng, Soon Xin Wang, Yang Hanzo, Lajos Univ Southampton Sch Elect & Comp Sci Southampton SO17 1BJ Hants England

ISBN: (纸本)9781424425198

A low complexity distributed coding scheme is proposed for communications over Rayleigh fading channels. Convolutional Coding (CC) assisted differential Phase-Shift Keying (DPSK) modulation is employed at the source node for conveying the source signals to two relay nodes as well as to the destination node during the first transmission period. Iterative detection exchanging extrinsic information between the DPSK demapper and CC decoder is carried out at each relay node in order to recover the source signals. Then, the CC-encoded bits are re-encoded by the two relays to generate differential space-time block Coding (DSTBC) symbols for transmission to the destination node during the second transmission period. At the destination node, iterative decoding exchanging extrinsic information is invoked between the DPSK demapper and the concatenated CC-DSTBC decoder, where the later is viewed as a single amalgamated decoder. The relay and destination nodes do not have to estimate the channel's fading coefficients due to the employment of DPSK and DSTBC schemes. Our design requires only two decoding iterations between the DPSK and CC decoders at each relay in order to further reduce the complexity of the relay nodes. Our distributed coding scheme assisted by two low-complexity relay nodes outperforms the non-cooperative benchmarker scheme by about 8 dBs, when aiming for a bit error ratio of 10(-5).

关键词： Cooperative Diversity differential space-time block code differential Modulation distributed coding iterative detection

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Non-Coherent Open-Loop MIMO Communications Over Temporally-Correlated Channels

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IEEE ACCESS 2016年 4卷 6161-6170页

作者： Cabrejas, Jorge Roger, Sandra Calabuig, Daniel Fouad, Yaser M. M. Gohary, Ramy H. Monserrat, Jose F. Yanikomeroglu, Halim Univ Politecn Valencia Inst Telecommun & Multimedia Applicat E-46022 Valencia Spain Carleton Univ Dept Syst & Comp Engn Ottawa ON K1S 5B6 Canada

This paper investigates the use of non-coherent communication techniques for open-loop transmission over temporally-correlated Rayleigh-fading MIMO channels. These techniques perform data detection without knowing the instantaneous channel coefficients. Three non-coherent Multiple Input Multiple Output (MIMO) schemes, namely, differential unitary space-time modulation, differential space-time block code, and Grassmannian signaling, are compared with several state-of-the-art training-based coherent schemes. This paper shows that the non-coherent schemes are meaningful alternatives to training-based communication, specially as the number of transmit antennas increases. In particular, for more than two transmit antennas, non-coherent communication provides a clear advantage in medium to high mobility scenarios.

关键词： Non-coherent communications Grassmannian signaling differential unitary space time modulation differential space-time block code MIMO temporal correlation

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On the Usage of Receive Antenna Subset Selection Algorithm in DSTBC Based MIMO Systems

On the Usage of Receive Antenna Subset Selection Algorithm i...

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10th Annual IEEE Wireless and Microwave Technology Conference

作者： Bassam, Seyed Aidin Kalantari, M. E. Boumaiza, Slim Ghannouchi, Fadhel M. Univ Calgary Schulich Sch Engn ECE iRadio Lab Calgary AB Canada Toosi Univ Technol KN Tehran Iran Univ Waterloo ECE Waterloo ON Canada

ISBN: (纸本)9781424445646

This paper addresses the employment of an antenna subset selection algorithm for differential space-time block codes (DSTBC). The antenna subset selection is based on maximizing the Frobenius norm of the channel matrix. The performance of the algorithm over Rayleigh and Rician slow fading channel is investigated comprehensively. The performance of the algorithm is compared with the optimal algorithm and the reason of the difference is investigated. In addition, the effect of K-factor of Rician channel on the performance of antenna subset selection is studied. The simulation results show a significant improvement in using antenna selection for DSTBCs as a means of decreasing bit-error-rate (BER) by increasing diversity gain.

关键词： differential space-time block code antenna subset selection frobenius norm Diversity gain Rayleigh channel Rician Channel

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