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arXiv 1612.03071cs.ITmath.IT
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SM和Alamerican STBC-OFDM信号的盲辨识

Blind Identification of SM and Alamouti STBC-OFDM Signals

Yahia A. Eldemerdash, Octavia A. Dobre, Bruce J. Liao

摘要:

提出了一种有效的空间复用(SM)和阿拉姆(AL)编码正交频分复用(OFDM)信号识别算法。利用来自不同天线的接收信号之间的互相关来提供区分特征以识别SM-OFDM和AL-OFDM信号。该算法既不需要估计信道系数和噪声功率,也不需要对发射信号进行调制。此外,它不需要空时分组码(STBC)或OFDM块同步。通过大量的仿真实验证明了该算法的有效性,在存在不同的传输损伤,如时间和频率偏移,多普勒频率,空间相关衰落。

英文摘要:

This paper proposes an efficient identification algorithm for spatial multiplexing (SM) and Alamouti (AL) coded orthogonal frequency division multiplexing (OFDM) signals. The cross-correlation between the received signals from different antennas is exploited to provide a discriminating feature to identify SM-OFDM and AL-OFDM signals. The proposed algorithm requires neither estimation of the channel coefficients and noise power, nor the modulation of the transmitted signal. Moreover, it does not need space-time block code (STBC) or OFDM block synchronization. The effectiveness of the proposed algorithm is demonstrated through extensive simulation experiments in the presence of diverse transmission impairments, such as time and frequency offsets, Doppler frequency, and spatially correlated fading.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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