IEICE Communications Express
Online ISSN : 2187-0136
ISSN-L : 2187-0136
Performance of order-L post detection switch and examine combiner in Hoyt fading
Aniruddha ChandraChayanika BoseManas K. Bose
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2012 年 1 巻 3 号 p. 131-136

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Closed-form error probability expressions for a L(≥ 2) branch post-detection switch-and-examine combiner (SEC), using non-coherent M-ary frequency shift keying (ncMFSK) modulation and operating over independent and identically distributed (IID) Hoyt fading channel, are derived. Under similar channel and receiver constraints, derived error rates are compared with results available for pre-detection combining. It was observed that an additional diversity gain is achievable with post-detection scheme when the average channel signal-to-noise ratio (SNR) exceeds some crossover SNR value that depends on modulation order (M), fading parameter (q), and number of diversity branches (L).
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© 2012 The Institute of Electronics, Information and Communication Engineers
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