Unified analysis of transmit, receive and hybrid diversity techniques over generalized-K channels

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• 作者：Ahmet Yılmaz and Oğuz Kucur
• 刊名：Wireless Communications and Mobile Computing
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：16
• 期：13
• 页码：1798-1808
• 全文大小：861K
• ISSN：1530-8677

文摘

In this work, unified performance analysis of various transmit, receive and hybrid diversity techniques are studied over generalised-K composite fading channels. Of transmit diversity techniques, orthogonal space-time block coding, maximal-ratio transmission and transmit antenna selection techniques are investigated. On the other hand, maximal-ratio combining and selection combining are examined as receive antenna diversity techniques. In this paper, 10 different multi-antenna techniques have been analyzed. Exact outage probability, symbol error probability, moment generating function, moments and ergodic capacity expressions are derived in closed-form. Asymptotic expressions are also derived in order to provide deeper insight by obtaining array and diversity gains of the studied multi-antenna scenarios. Simulations verify theoretical results. We show that the diversity orders of the investigated scenarios are the minimum of the diversity orders of the system for only small-scale fading channel case and the shadowing parameter, and limited by the shadowing effect especially in heavy shadowing case. Copyright