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基于分层结构的空时分组码 被引量：12

Space-time block code based on layered space time architecture
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摘要 提出了一种新的空时编码方法 ,该方法结合了分层空时BLAST (BellLay eredSpaceTime)结构及空时分组码STBC (SpaceTimeBlockCode)的优点。采用在发射端对发射天线分组 ,对于每组进行独立的空时分组编码 ,而在接收端进行分组干扰抑制 ,并且用奇异值分解方法实现解码。该方法具有高于STBC的频谱利用率和码速率。仿真结果验证了该方法的抗衰落性能优于BLAST。 A new space-time coding approach is proposed by combining BLAST (Bell Layered Space Time) and STBC (Space Time Block Code). The transmit antennas are divided into subgroups and each of them is encoded by individual STBC. For the receive antennas, the group interference suppression measurement is taken and a singular value decomposition (SVD) algorithm is employed for decoding. The new approach has a higher spectrum efficiency and code rate than that of STBC. Simulation results show that the ability of combating fading of the approach is better than that of BLAST.
作者 许晓红 廖桂生 李勇朝 王峰
机构地区 西安电子科技大学雷达信号与信息处理重点实验室
出处 《电波科学学报》 EI CSCD 2004年第2期129-134,共6页 Chinese Journal of Radio Science
基金 国家自然科学基金 (6 0 172 0 2 8) 陕西省自然科学基金 (2 0 0 2F0 2 ) 高等学校博士学科点专项基金资助
关键词 分层空时结构 空时分组码 分组干扰抑制 空时编码 频谱利用率 无线通信 Algorithms Cochannel interference Communication channels (information theory) Computer simulation Wireless telecommunication systems
分类号 TN92 [电子电信—通信与信息系统]
  • 相关文献

参考文献11

  • 1G J Foschini, M J Gans.On limits of wireless communication fading environment when using multiple antennas[J]. Wireless Personal Communications,1998,6(3):311～335.
  • 2G J Foschini.Layered space-time architecture for wireless communication in fading environment when using multiple antennas[J]. Bell Labs Technical Journal, 1996,1(2):41～59.
  • 3Vahid Tarokh, Nambi Seshdri and A R Calderbank. Space-time codes for high data rate wireless communications: performance criterion and codes construction[J].IEEE transactions on information theory, 1998,44(2):744～765.
  • 4Siavash M Alamouti.A simple transmit diversity technique for wireless communications[J].IEEE journal on select areas in communications, 16.
  • 5Vahid Tarokh, H Jafarkhani, A R Calferbank.Space time block codes from orthogonal designs[J]. IEEE Trans.On IT.1999.IT-45(5):1456～1467.
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二级参考文献9

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  • 9王超,张林让,廖桂生,吴顺君.多相调制下的空时分组码性能分析[J].西安电子科技大学学报,2002,29(1):82-86. 被引量：6

共引文献8

同被引文献110

  • 1贺志强,王晓湘,吴伟陵.一种新的时变衰落信道下MIMO系统的功率分配与自适应调制算法[J].电子学报,2004,32(9):1556-1559. 被引量：10
  • 2刘海涛,孙宇昊,李冬霞,李道本.基于QR分解的循环迭代检测算法[J].电波科学学报,2005,20(5):575-579. 被引量：13
  • 3杨绿溪,钱轶群,杨兵.一种用于频率选择性信道的高速率单载波空时分组码系统[J].应用科学学报,2005,23(6):573-576. 被引量：1
  • 4李新民,康晓非,张鸣.OFDM系统载频偏移估计算法的研究[J].西安科技大学学报,2006,26(4):549-552. 被引量：4
  • 5V Tarokh, N Seshadri, A R Calderbank. Space-time codes for high data rate wireless communication: performance criterion and codes construction[J]. IEEE Trans. on IT, 1998,44(2) :744-765.
  • 6V Tarokh, H Jafarkhani, A R Calferbank. Space-time block codes from orthogonal designs[J]. IEEE Trans.on IT, 1999,45 (5) : 1456-1467.
  • 7G J Foschini. Layered space-time architecture for wireless communication in fading environment when using multiple antennas [J]. Bell Labs Technical Journal,1996,1(2) : 41-59.
  • 8V Tarokh,A Naguib, and N Seshadri. Combined array processing and space-time coding[J]. IEEE Trans. on IT, 1999, 45(4):1121-1128.
  • 9S M Alamouti. A simple transmitter diversity scheme for wirelesa communication [J]. IEEE Trans. On JSAC, 1998,16(10):1451-1458.
  • 10Anastasios Stamoulis, Zhiqiang Liu and Georgios B Giannakis. Space-time block-coded OFDMA with linear precoding for multirate servives[J] . IEEE Trans.On SP. 2002,50(1):119-129.

引证文献12

二级引证文献32

电波科学学报
2004年 第2期

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