一种改进的广义正交空时分组码

doi:10.3969/j.issn.1001-2400.2012.04.029

J4 ›› 2012, Vol. 39 ›› Issue (4): 161-166.doi: 10.3969/j.issn.1001-2400.2012.04.029

一种改进的广义正交空时分组码

田心记¹;倪水平¹;宋成¹;赵伟²

(1. 河南理工大学计算机科学与技术学院，河南焦作 454000；
2. 北京邮电大学信息与通信工程学院，北京 100876)

收稿日期:2011-10-17 出版日期:2012-08-20 发布日期:2012-10-08
通讯作者: 田心记
作者简介:田心记(1983-)，女，讲师，博士，E-mail: tianxinji.world@yahoo.com.cn．
基金资助:
国家自然科学基金资助项目(60872149)

Improved extending orthogonal space-time block coding

TIAN Xinji¹;NI Shuiping¹;SONG Cheng¹;ZHAO Wei²

(1. School of Computer Sci. and Tech., Henan Polytechnic Univ., Jiaozuo 454000， China;
2. School of Info. and Commun. Eng., Beijing Univ. of Posts and Telecommunications, Beijing 100876， China)

Received:2011-10-17 Online:2012-08-20 Published:2012-10-08
Contact: TIAN Xinji

摘要/Abstract

摘要：

广义正交空时分组码由多个相同的正交空时分组码组成，然而该编码的设计未能考虑到每个正交空时分组码的各支路对应的信道衰落系数，因而其性能还有提升的空间．针对此问题，提出了一种改进的广义正交空时分组码，将部分正交空时分组码的各支路信号分别旋转适当的角度．这些角度由接收端以最大化等效信道增益为目标而设计，因此，增大了系统的等效信道增益，提高了系统的性能．理论分析及仿真表明，该方法只需增加很少的反馈量就能显著提高系统的性能，且极大地降低了接收端计算反馈信息的复杂度．

关键词: 空时分组码, 信道增益, 反馈, 计算复杂度

Abstract:

The extending orthogonal space-time block code is constituted by the identical orthogonal space-time block code (OSTBC). However, the channel fading coefficient of each branch of each OSTBC is not taken into consideration, and the performance of the extending orthogonal space-time block code can be improved further. For this problem, an improved extending orthogonal space-time block code is proposed, in which a proper rotation is set at each signal of branches of some OSTBCs. Since the rotation angles are designed to maximize the effective channel gain, the effective channel gain is increased and the performance is improved. Analysis and simulation show that the system performance is improved, and that the computational complexity is also greatly reduced with only a few bits increase in feedback information.

Key words: space-time block coding, channel gain, feedback, computational complexity

田心记;倪水平;宋成;赵伟. 一种改进的广义正交空时分组码[J]. J4, 2012, 39(4): 161-166.

TIAN Xinji;NI Shuiping;SONG Cheng;ZHAO Wei. Improved extending orthogonal space-time block coding[J]. J4, 2012, 39(4): 161-166.

参考文献

［1］ Alamouti S M. A Simple Transmit Diversity Technique for Wireless Communications［J］. IEEE Journal on Selected Areas in Communications, 1998, 16(8): 1451-1458.
［2］张天魁，程婕，冯春燕. 一种全速率的多天线中继STBC协作机制［J］. 西安电子科技大学学报，2010, 37(2): 334-339.
Zhang Tiankui, Cheng Jie, Feng Chunyan. Full Rate STBC Cooperation Scheme for the Multi-Antenna Relay［J］. Journal of Xidian University, 2010, 37(2): 334-339.
［3］ Lee I, Kim D. Achieving Maximum Spatial Diversity with Decouple-and-forward Relaying in Dual-hop OSTBC Transmissions［J］. IEEE Trans Wireless Commun, 2010, 9(3): 921-925.
［4］ Bhatangar M, Hjrungnes A, Song L. Double-differential Orthogonal Space-time Block Codes for Arbitrarily Correlated Rayleigh Channels with Carrier Offsets［J］. IEEE Trans Wireless Commun, 2010, 9(1):145-155.
［5］任品毅, 裴彬, 王熠晨, 等. 频率选择性衰落信道中一种低复杂度的正交空时分组码译码算法［J］. 电子与信息学报, 2009, 31(6) : 1376-1380.
Ren Pinyi, Pei Bin, Wang Yichen, et al. A Low Complexity Decoding Algorithm for Orthogonal Space Time Block Codes in Frequency Selective Fading Channels［J］. Journal of Electronics & Information Technology, 2009, 31(6) : 1376-1380.
［6］ Azzam L, Ayanoglu E. A Novel Maximum Likelihood Decoding Algorithm for Orthogonal Space-Time Block Codes［J］. IEEE Trans Commun, 2009, 57(3): 606-609.
［7］ Tarokh V, Jafarkhani H, Calderbank A R. Space-time Block Codes from Orthogonal Designs［J］. IEEE Trans InformTheory, 1999, 45(5): 1456-1467.
［8］ Huang H, Li S. Optimized Non-unitary Linear Precoding for Orthogonal Space-time Block Codes［J］. IEEE Commun Lett, 2009, 13(6): 414-416.
［9］ Bhatangar M, Hjrungnes A, Song L. Linear Precoding of STBC over Correlated Ricean MIMO Channels［J］. IEEE Trans Wireless Commun, 2010, 9(6): 1832-1836.
［10］ Bjornson E, Jorswieck E, Ottersten B. Impact of Spatial Correlation and Precoding Design in OSTBC MIMO Systems［J］. IEEE Trans Wireless Commun, 2010, 9(11): 3578-3589.
［11］ Yang H, Luo T, Li J. Optimal Linear Precoding for OSTBC Using Noisy Quantized Feedback［C］// Proc IEEE ICCTA. Beijing: IEEE, 2009: 643-647.
［12］ Punchihewa A, Bharqava V, Despins C. Linear Precoding for Orthogonal Space-time Block Coded MIMO-OFDM Cognitive Radio［J］. IEEE Trans on Commun, 2011, 59(3): 767-779.
［13］ Fu Y, Krzymien W, Tellambura C. Precoding for Orthogonal Space-time block-coded OFDM Downlink: Mean or Covariance Feedback［J］. IEEE Trans Veh Technol, 2009, 58(7): 3263-3270.
［14］ Akhtar J, Gesbert D. Extending Orthogonal Block Codes with Partial Feedback［J］. IEEE Trans Wireless Commun, 2004, 3(6): 1959-1962.
［15］ Sezgin A, Altay G, Paulraj A. Generalized Partial Feedback Based Orthogonal Space-time Block Coding［J］. IEEE Trans Wireless Commun, 2009, 8(6): 2771-2775.
［16］胡细宝, 孙洪祥, 王丽霞. 概率论、数理统计、随机过程［M］. 北京: 北京邮电大学出版社, 2004: 117-118.

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一种改进的广义正交空时分组码

Improved extending orthogonal space-time block coding

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