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2002年IEEE十区计算机、通信、控制和电机工程会议

作者： WANG Chao LIAO Guisheng WU Shunjun ZHANG Linrang TAO Xiaoyan National Key Lab. For Radar Signal Processing, Xidian Univ., Xi'an China 710071 Telecommunication Engineering Institute, AFEU., Xi'an China 710077

The space-time block coding (STBC), as animportant member of the space-time coding family, has recentlybeen developed to take advantage of the substantial capacityincreases which are available in MIMO wireless systems. Afterthe introduction of space-time coding, the channel model of theMIMO is presented for STBC. Then the encoding and decodingalgorithm under QAM constellation for STBC are ***, the simulation results for various STBC under QAMmodulation are figured out.

关键词： space-time block coding Diversity Encoding and Decoding QAM

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A New Performance Enhancement Algorithm for space-time block coding in OFDM Systems

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The Journal of China Universities of Posts and Telecommunications 2004年第3期11卷 62-65页

作者： XUKai LUOTao YINChang-chuan YUEGuang-xin Telecommunication Engineering School Beijing University of Posts and TelecommunicationsBeijing100876P.R.China

In this paper, a new performance enhancement algorithm for space-time block coding in OFDM System, which is an adaptive transmit optimization beamforming STBC-OFDM system based on Channel State Information (CSI), is proposed. And, the optimization beamforming weight vector is derived in case of maximal receiver Signal-to-Noise Ratio (SNR). Theoretic analysis and computer simulation results of the system over wireless Reyleigh fading channels show that the system can explore all the diversity resource and performance can be improved significantly compared with traditional STBC-OFDM system. In addition, the performance of enhancement algorithm is better than STTC-OFDM system and TCM-STBC-OFDM system in the case of higher receiver SNR.

关键词： OFDM channel state information beamforming space-time block coding

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z-DOMAIN DESIGN OF space-time block coding SINGLE-CARRIER TRANSMISSION OVER FREQUENCY-SELECTIVE FADING CHANNELS

International Journal on Wireless & Optical Communications

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International Journal on Wireless & Optical Communications 2003年第2期01卷 191-198页

作者： CHANGJIANG XU THO LE-NGOC Department of ECE McGill University 3480 University Street Montréal Québec Canada H3A 2A7 Canada

In this paper, we present a general z-domain design for STBC single-carrier transmission schemes with multiple transmit antennas over frequency-selective fading channels. Using z-transform approach, we develop the STBC single-carrier transmission transceiver structures and examine its performance gain. Low-complexity detection and/or equalization can be performed in the frequency domain.

关键词： space-time block coding frequency-selective fading single-carrier transmission

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Closed Loop space-time block coding for Wireless Downlink Transmission

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Journal of Southwest Jiaotong University(English Edition) 2005年第1期13卷 18-22页

作者：李勇朝廖桂生王峰 National Key Lab. for Radar Signal Processing Xidian University Xi'an 710071 China

In order to improve the poor performance of space-time block coding (STBC) in a downlink correlated fading environment, a closed loop scheme is proposed. With the known channel fading statistics fed from the receiver, eigenbeamforming is utilized to improve the performance of STBC at the transmitter. The new system achieves the array and diversity gain simultaneously. Because reduced dimension processing is adopted, the proposed system has a relative simple structure compared with the traditional beamforming system. The validity of the scheme is verified in several situations by simulation experiments.

关键词： space-time block coding Eigenbeamforming Downlink transmission

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Combined Beamforming and space-time block coding for Wireless Communications

Combined Beamforming and Space-Time Block Coding for Wireles...

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IEEE第14届国际个人无线移动通信大会

作者： Lin-lin WANG, Shu-xun WANG, Xiao-ying SUN and Feng-ye HU Institute of Communications Engineering, Jilin University Changchun, China

This paper presents an approach for beamformingbased on third-order cyclic statistics. The approach has fairlywell accuracy. Further, a new scheme joint beamforming andspace-time block coding is sugge

关键词： cyclic statistics beamforming space-time block coding

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Partial Feedback Based Orthogonal space-time block coding With Flexible Feedback Bits

Partial Feedback Based Orthogonal Space-Time Block Coding Wi...

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The 9th International Conference on Wireless Communications,Networking and Mobile Computing(WICOM 2013)

作者： Lei Wang Zhigang Chen School of Electronics and Information Engineering Xi'an Jiaotong University School of Electronics and Information Engineering Xi’an Jiaotong University

The conventional orthogonal space-time block code (OSTBC) with limited feedback has fixed P-1 feedback bits for the specific ntp transmit antennas. A new partial feedback based OSTBC which provides flexible feedback bits is proposed in this paper. The proposed scheme inherits the properties of having a simple decoder and the full diversity of OSTBC, moreover, preserves full data rate. Simulation results show that for ntp transmit antennas, the proposed scheme has the similar performance with the conventional one by using P-1 feedback bits, whereas has the better performance with more feedback bits.

关键词： MIMO Transmit Diversity space-time block coding Partial Feedback

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Performance improvement of space diversity technique using space time block coding for time varying channels in wireless environment

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INTERNATIONAL JOURNAL OF INTELLIGENT UNMANNED SYSTEMS 2022年第2-3期10卷 278-286页

作者： Bagde, Vandana Dethe, C. G. Priyadarshini Inst Engn & Technol Dept E&C Nagpur Maharashtra India RTM Nagpur Univ UGC HRDC Nagpur Maharashtra India

Purpose A recent innovative technology used in wireless communication is recognized as multiple input multiple output (MIMO) communication system and became popular for quicker data transmission speed. This technology is being examined and implemented for the latest broadband wireless connectivity networks. Though high-capacity wireless channel is identified, there is still requirement of better techniques to get increased data transmission speed with acceptable reliability. There are two types of systems comprising of multi-antennas placed at transmitting and receiving sides, of which first is diversity technique and another is spatial multiplexing method. By making use of these diversity techniques, the reliability of transmitting signal can be improved. The fundamental method of the diversity is to transform wireless channel such as Rayleigh fading into steady additive white Gaussian noise (AWGN) channel which is devoid of any disastrous fading of the signal. The maximum transmission speed that can be achieved by spatial multiplexing methods is nearly equal to channel capacity of MIMO. Conversely, for diversity methods, the maximum speed of broadcasting is much lower than channel capacity of MIMO. With the advent of space-time block coding (STBC) antenna diversity technique, higher-speed data transmission is achievable for spatially multiplexed multiple input multiple output (SM-MIMO) system. At the receiving end, detection of the signal is a complex task for system which exhibits SM-MIMO. Additionally, a link modification method is implemented to decide appropriate coding and modulation scheme such as space diversity technique STBC to use two-way radio resources efficiently. The proposed work attempts to improve detection of signal at receiving end by employing STBC diversity technique for linear detection methods such as zero forcing (ZF), minimum mean square error (MMSE), ordered successive interference cancellation (OSIC) and maximum likelihood detection (MLD

关键词： Diversity space-time block coding Spatially multiplexed MIMO Maximum likelihood detection

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Outage Analysis of space time block coding MIMO Cooperative System with Amplify-and-Forward Scheme

Outage Analysis of Space Time Block Coding MIMO Cooperative ...

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IEEE 72nd Vehicular Technology Conference Fall 2010

作者： Abdaoui, Abderrazek Ikki, Salama S. Ahmed, Mohamed H. Chatelet, Eric Univ Technol Troyes Inst Charles Delaunay LM2S BP 2060 F-10010 Troyes France Univ Waterloo Waterloo ON N2L 3G1 Canada Mem Univ Newfoundland St John NF A1C 5S7 Canada

ISBN: (纸本)9781424435746

Outage analysis of cooperative space-time block coding (STBC) multiple-input multiple-output (MIMO) relaying system with a single relay is discussed in this paper. The source node, equipped with two transmit antennas, broadcasts each STBC code to the relay and the destination nodes. Then, the relay node also equipped with multiple antennas, amplifies-and-forwards (AF) the received STBC codes. Finally, the destination node uses maximum ratio combining (MRC) and exploits the diversity gain obtained through the direct and the indirect links simultaneously. Lower bounds of the outage probability is derived using the moment generating function (MGF) of the total signal-to-noise ratio (SNR) for a particular signal of M-ary-quadrature-amplitude modulation (M-QAM). Simulation results are provided to verify the validity of the analytical results.

关键词： MIMO relaying channel space-time block coding MRC scheme moment generating function (MGF) outage probability

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On diversity and coding gains and optimal matrix constellations for space-time block codes

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IEEE TRANSACTIONS ON SIGNAL PROCESSING 2005年第10期53卷 3703-3717页

作者： Gharavi-Alkhansari, M Gershman, AB Tech Univ Darmstadt Commun Syst Grp D-64283 Darmstadt Germany

The design of optimal space-time (matrix) constellations for multiple-input multiple-output (MIMO) wireless systems with quasistatic Rayleigh flat-fading channel and coherent maximum likelihood (ML) decoder is an open problem of great interest. In 1998, Throkh et al. proposed rank and determinant criteria as guidelines for designing space-time codes. In this paper, we revisit these criteria and explore their fundamental limitations. In particular, we investigate how they characterize the role of the rank of the code difference matrix in the error probability of the coherent ML decoder and study the shortcomings of such a characterization. Motivated by the results of our study of the rank and determinant criteria, we then address the problem of finding optimal space-time constellations in the sense of minimizing the exact average pairwise error probability under the average energy constraint. We show that for any fixed space-time constellation size and block length, orthogonal space-time block codes (OSTBCs) are optimal in that sense among all space-time codes if the constellation size is not greater than 2K + 1, where K is the number of the complex variables of the OSTBC. We also demonstrate that for such constellation sizes and when the number of receivers is large, the optimal constellations are regular simplex. Furthermore, we show that for any constellation size, OSTBCs are optimal among all linear dispersion (LD) codes with the same number of complex variables.

关键词： coding gain diversity gain multiple antennas optimal constellations space-time block coding

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使用空时编码与XOR编码的合作式通讯传输机制

使用空时编码与XOR编码的合作式通讯传输机制

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作者： Sifiso 国立台北科技大学

学位级别：硕士

The 3rd Generation Partnership Project (3GPP) completed a study on coordinated multi-point transmission and reception (CoMP) techniques to facilitate cooperative communications across multiple transmission and reception points (e.g., cells) for the LTE-Advanced (LTE-A) system. CoMP was initially brought forward in the study item of LTE-A to meet the requirements of the International Mobile Telecommunications Advanced (IMT-Advanced) in 2008. At their meeting (3GPP TSG RAN #50), the study item CoMP was agreed upon for Release 11 as a tool to improve the coverage of high data rates, cell-edge throughput, and also to increase the overall system throughput. In a CoMP operation, multiple points coordinate with each other in such a way that the transmitted signals from/to other points do not incur serious interference or can even be exploited as meaningful signals. Theoretical work has shown that CoMP offers considerable potential performance gains in both the uplink and the downlink. For this reasons, CoMP has been studied as a solution to increasing system throughput, especially at the cell-edge areas where inter-cell interference (ICI) is severe more so with the traditional *** coding (NC) is another technique that has been receiving much attention recently, for its ability to improve spectral efficiency and achieve throughput optimality. By using network coding on CoMP schemes, the throughput of the wireless system is improved further because network coding brings about a new perspective which utilizes the interference instead of mitigating it. Exclusive-OR (XOR) coding, is one of the simple implementation of NC, by which two bits can be sent in only one transmission (by XORing them) instead of the normal two transmissions. The XOR operation of NC at the antenna is normally dubbed Analogue Network coding (ANC) or Physical Layer Network coding (PNC). Through the use of XOR coding, multiple faulty packets can be rectified by the receiver at the cost of tra

关键词： Coordinated multipoint transmission/reception Network coding XOR coding space-time block coding space-time transmit diversity

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