Bit error probability for orthogonal space time block codes with differential detection

The Ninth International Conference onCommunications Systems, 2004. ICCS 2004. Pub Date : 2004-11-30 DOI:10.1109/GLOCOM.2005.1577927

T. P. Soh, P. Kam, C. Ng

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引用次数: 11

Abstract

The bit error probability (BEP) of space time block codes (STBC) based on Alamouti's scheme with differential encoding and decoding and utilising 2b-ary phase shift keying (2b-PSK) modulation is studied, and close form analytical results are obtained. The channel model is that of a frequency non-selective and slow Rayleigh fading channel. While all the existing analyses assume no fading fluctuations, these are still considered in the analysis. For the case in which the fading process remains constant within any code block interval, but which fluctuates from one code block interval to the next, exact closed-form expressions for the BEP of binary and quadruple PSK are derived. An approximate result is obtained for 8PSK. For the case in which the fading process fluctuates from one symbol interval to the next, but which remains constant within the symbol interval, the upper and lower bounds are obtained for the BEP and a simple and yet accurate approximation of the BEP is developed. The analysis is applicable to any number of receive antennas

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差分检测正交空时分组码的误码概率

研究了基于Alamouti差分编解码方案和利用2b-ary相移键控(2b-PSK)调制的空时分组码(STBC)的误码率(BEP)，并得到了近似的解析结果。信道模型为频率非选择性慢瑞利衰落信道模型。虽然所有现有的分析都假设没有衰落波动，但这些仍然在分析中考虑。对于衰落过程在任何码块区间内保持不变，但在一个码块区间之间波动的情况，导出了二进制和四元PSK的精确闭型表达式。得到了8PSK的近似结果。对于衰落过程从一个符号区间波动到下一个符号区间，但在该符号区间内保持不变的情况，得到了BEP的上界和下界，并给出了简单而准确的BEP近似。该分析适用于任意数量的接收天线

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The Ninth International Conference onCommunications Systems, 2004. ICCS 2004.

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