基于相位旋转的坐标交织分布式空时码

田心记; 袁超伟; 王秋才; 赵伟

doi:10.3724/SP.J.1146.2010.01194

基于相位旋转的坐标交织分布式空时码

doi: 10.3724/SP.J.1146.2010.01194

基金项目:

国家自然科学基金(60872149)资助课题

计量
- 文章访问数: 2833
- HTML全文浏览量: 132
- PDF下载量: 575
- 被引次数: 0
出版历程
- 收稿日期: 2010-11-04
- 修回日期: 2011-01-26
- 刊出日期: 2011-05-19

Co-ordinate Interleaved Distributed Space-time Code Based on Phase Rotation

摘要

摘要: 两天线的中继网络中，坐标交织分布式空时码(CIDSTC)的设计未考虑到信道状态信息(CSI)。针对此问题，该文提出了一种基于相位旋转的坐标交织分布式空时码(PR-CIDSTC)，中继节点将其发送信号旋转适当的角度，该角度由接收端根据CSI以最小化成对差错概率(PEP)为目标而设计并反馈到发送端。仿真结果显示，误码率(BER)为10-5时，PR-CIDSTC只需2 bit的反馈量就获得了1.5 dB的增益。
- 坐标交织分布式空时码 /
- 相位旋转 /
- 反馈 /
- 可靠性 /
- 信道状态信息
Abstract: The Channel State Information (CSI) is not taken into consideration in Co-ordinate Interleaved Distributed Space-Time Code (CIDSTC) for two-antenna-relays networks. For this issue, CIDSTC based on Phase Rotation (PR-CIDSTC) is proposed, in which relays rotate their transmitted signals with certain angles. Since these angles are designed to minimize Pair Error Probability (PEP), the performance is enhanced. Simulation demonstrates that the proposed scheme provides a 1.5 dB gain at Bit Error Rate (BER) of10-5 over PR-CIDSTC with only 2 bit feedback amount.
- Co-ordinate Interleaved Distributed Space-Time Code (CIDSTC) /
- Phase rotation /
- Feedback /
- Reliability /
- Channel State Information (CSI)

HTML全文

参考文献(1)

Kaiser T, Zheng F, and Dimitrov E. An overview of ultra-wide-band systems with MIMO [J]. Proceedings of the IEEE, 2009, 97(2): 285-312.[2] Nosratinia A, Hunter T, and Hedayat A. Cooperative communication in wireless networks [J]. IEEE Communications Magazine, 2004, 42(10): 74-80.[3] Laneman J, Tse D, and Wornell G L. Cooperative diversity in wireless networks: efficient protocols and outage behavior [J]. IEEE Transcation on Information Theory, 2004, 50(12): 3062-3080.[4] 李靖, 葛建华, 王勇等. 有限反馈分布式预编码协作通信系统及性能分析[J]. 电子与信息学报, 2010, 32(4): 799-804.Li Jing, Ge Jian-hua, and Wang Yong, et al.Design and performance analysis of precoded cooperative communication system with limited feedback[J]. Journal of Electronics Information Technology, 2010, 32(4): 799-804.[5] 俞晓帆, 赵春明. 分布式空频编码协同通信系统分段ML迭代检测算法[J]. 电子与信息学报, 2010, 32(8): 1914-1919.Yu Xiao-fan and Zhao Chun-ming. Segmented maximum likelihood iterative detection of distributed space-frequency coded cooperative communication system[J]. Journal of Electronics Information Technology, 2010, 32(4): 1914-1919.[6] 赵睿, 邹应全, 李春国等. 多用户MIMO网络的OFDM放大转发双向中继策略[J]. 电子与信息学报, 2010, 32(3): 617-622.Zhao Rui, Zou Ying-quan, and Li Chun-guo, et al.OFDM amplify-and-forward two-way relaying for multiuser MIMO networks[J]. Journal of Electronics Information Technology, 2010, 32(3): 617-622.[7] 刘海涛, 王勇, 李冬霞. 基于块空时分组编码DFT-S-OFDM虚拟MIMO传输方案[J]. 电子与信息学报, 2010, 32(5): 1183-1187.Liu Hai-tao, Wang Yong, and Li Dong-xia. A virtual MIMO transmission scheme based on DFT-S-OFDM with block space-time block coding[J]. Journal of Electronics Information Technology, 2010, 32(5): 1183-1187.[8] Harshan J and Sundar B. Co-ordinated interleaved distributed space-time coding for two-antenna-relays networks[J]. IEEE Transcation on Wireless Communications, 2009, 8(4): 1783-1791.[9] Paulraj A, Nabar R, and Gore D 著, 刘威鑫，李少谦译. 空时无线通信导论(第1版) [M]. 北京：清华大学出版社, 2005: 115-116.[10] 程云鹏, 张凯院, 徐仲. 矩阵论(第3版) [M]. 陕西：西北工业大学出版社，2006: 122.[11] Maham B, Hjrungnes A, and Abreu G. Distributed GABBA space-time codes in amplify-and-forward relay networks [J]. IEEE Transcation on Wireless Communications, 2009, 8(4): 2036-2045.

施引文献

资源附件(0)

访问统计