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全部作者: 徐峰 岳殿武 第1作者单位: 大连海事大学 摘要: This paper presents an investigation on dual-hop cooperative communication systems with regenerative relays over flat Rayleigh fading channels. Potentially relay nodes which can successfully decode the signals cooperatively relay to destination for performance improvement. Maximal-ratio combining (MRC) reception technique is adopted. M-ary phase-shift keying (M-PSK) modulation is evaluated. We first derive symbol error rate (SER) expression of dual-hop communication with MRC scheme. We also derive asymptotic SER expression. With the aid of the asymptotic analysis, asymptotic-optimal power allocation (A-OPA) strategy is determined. It is shown that a significant performance improvement is achieved compared to that of equal power allocation (EPA) strategy. 关键词: Cooperative communication, dual-hop, maximal-ratio combining. (浏览全文) 发表日期: 2006年11月01日 同行评议:
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