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卫星通信中基于扩频技术的异步差分空时协同编码研究

章坚武 章谦骅

章坚武, 章谦骅. 卫星通信中基于扩频技术的异步差分空时协同编码研究[J]. 空间科学学报, 2015, 35(5): 634-640. doi: 10.11728/cjss2015.05.634
引用本文: 章坚武, 章谦骅. 卫星通信中基于扩频技术的异步差分空时协同编码研究[J]. 空间科学学报, 2015, 35(5): 634-640. doi: 10.11728/cjss2015.05.634
ZHANG Jianwu, ZHANG Qianhua. Asynchronous Differential Space-Time Block Codes Based On Spreading Techniques Over Satellite Communication[J]. Chinese Journal of Space Science, 2015, 35(5): 634-640. doi: 10.11728/cjss2015.05.634
Citation: ZHANG Jianwu, ZHANG Qianhua. Asynchronous Differential Space-Time Block Codes Based On Spreading Techniques Over Satellite Communication[J]. Chinese Journal of Space Science, 2015, 35(5): 634-640. doi: 10.11728/cjss2015.05.634

卫星通信中基于扩频技术的异步差分空时协同编码研究

doi: 10.11728/cjss2015.05.634
基金项目: 国家自然科学基金项目资助(61102066)
详细信息
    通讯作者:

    章坚武,E-mail:121080014@hdu.edu.cn

  • 中图分类号: V443;TN927

Asynchronous Differential Space-Time Block Codes Based On Spreading Techniques Over Satellite Communication

  • 摘要: 卫星通信系统中, 经过不同信道的中继信号强度存在显著差异, 存在同步误差且时延差动态变化, 严重影响了误码性能. 传统方案一般通过引入差分编码解决卫星通信接收端的动态信道估计问题. 本文通过扩频系统中的正交码区分来自不同中继卫星的信号, 借助扩频码表提取各路信号后进行空时解码. 从仿真结果可知, 差分空时编码与扩频技术相结合能获得更好的误码率性能, 很好地解决了随机时延差问题, 使接收端无须对信道参数进行估计, 从而大幅降低其复杂度.

     

  • [1] Sendonaris A, Erkip E, Aazhang B. User cooperation diversity: Part 1. System description[J]. IEEE Trans. Comm., 2003, 51(11):1927-1938.
    [2] Jing Y, Hassibi B. Distributed space-time coding in wireless relay networks[J]. IEEE Trans. Wirel. Comm., 2006, 5(11):3524-3536.
    [3] Kong Bo, Zhang Gengxin, Jiang Lifeng, et al. Research on space time cooperative strategy in satellite communications[J]. Digit. Comm. World, 2013, bf 7(1):55-57. (孔博, 张更新, 蒋丽凤, 等. 卫星空时协同策略研究[J]. 数字通信世界, 2012, 7(1):55-57)
    [4] Chang Jishi, Chen Wenjing, Ma Dongtang. Analysis of cooperative communication strategy in satellite communication system[J]. Mod. Elec. Tech., 2010, 33(23):63-66. In Chinese (昌纪师, 成文婧, 马东堂. 卫星通信系统的协同通信策略研究[J]. 现代电子技术, 2010, 33(23):63-66)
    [5] Mei Y, Hua Y, Swami A, et al. Combating synchronization errors in cooperative relays[C]//IEEE International Conference on Acoustics, Speech, and Signal Processing. Philadelphia, Pennsylvania: IEEE, 2005, doi: 10.1109/ICASSP.2005.1415723
    [6] Damen M O, Hammons A R. Delay-tolerant distributed TAST codes for cooperative diversity[J]. IEEE Trans. Inf. Theor., 2006, 9:3755-3773
    [7] Lee Y, Kang S G, Chong D, et al. An Alamouti coding scheme for asynchronous cooperative communication systems over frequency selective fading channels[C]// Vehicular Technology Conference. Budapest, Hungary: IEEE, 2011:1-5
    [8] Peterson R L, Ziemer R E, Borth D E. Introduction to Spread Spectrum Communications[M]. Beijing: Publishing House of Electronics Industry, 2006:3. In Chinese (Peterson R L, Ziemer R E, Borth D E. 扩频通信导论[M]. 北京: 电子工业出版社, 2006:3)
    [9] Sugiura S, Chen S, Hanzo L. Cooperative differential linebreak space time spreading for the asynchronous relay aided CDMA uplink using interference rejection spreading code[J]. IEEE Sign. Proc. Lett., 2010, 17:117-120
    [10] Yu X, Xu D. Performance analysis of space-time coded CDMA system over Nakagami fading channels with perfect and imperfect CSI[J]. Wirel. Pers. Comm., 2012, 62(3):633-653
    [11] Tarokh V, Jafarkhani H. A differential detection scheme for transmit diversity[J]. IEEE J. Sel. Areas Comm., 2000, 18(7):1169-1174
    [12] Zang Guozhen, Wang Kai, Xia Yin. Design and simulation of satellite differential cooperative communication scheme based on Alamouti code[J]. J. Mil. Comm. Tech., 2011, 3(3):1-6. In Chinese (臧国珍, 王恺, 夏莹. 基于Alamouti码的卫星差分协同方案设计与仿真[J]. 军事通信技术, 2011, 3(3):1-6)
    [13] Yao Y, Li N, Xu P, et al. Chip-level differential space-time block coded direct-sequence spread-spectrum communication[C]//2012 International Symposium on Instrumentation & Measurement, Sensor Network and Automation (IMSNA). Sanya, China: IEEE, 2012:509-511
    [14] Nahas M, Saadani A, Othman G R B. General construction method of bounded delay tolerant space-time block codes[C]//Global Telecommunications Conference. Miami, Florida: IEEE, 2010:1-6
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出版历程
  • 收稿日期:  2014-09-28
  • 修回日期:  2015-04-15
  • 刊出日期:  2015-09-15

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