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首页> 外文期刊>Wireless Communications Letters, IEEE >Analysis of Uplink IRS-Assisted NOMA Under Nakagami-m Fading via Moments Matching
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Analysis of Uplink IRS-Assisted NOMA Under Nakagami-m Fading via Moments Matching

机译:NAKAGAMI-M通过时刻匹配下的上行IRS辅助NOMA分析

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This letter investigates the uplink outage performance of intelligent reflecting surface (IRS)-assisted non-orthogonal multiple access (NOMA). We consider the general case where all users have both direct and reflection links, and all links undergo Nakagami-m fading. We approximate the received powers of the NOMA users as Gamma random variables via moments matching. This allows for tractable expressions of the outage under interference cancellation (IC), while being flexible in modeling various propagation environments. Our analysis shows that under certain conditions, the presence of an IRS might degrade the performance of users that have dominant line-of-sight (LOS) to the base station (BS), while users dominated by non-line-of-sight (NLOS) will always benefit from it.
机译:这封信调查了智能反射表面(IRS)的上行停电性能 - 分配非正交多址(NOMA)。我们考虑所有用户都有直接和反射链路的一般情况,并且所有链接都会接受Nakagami-M褪色。我们通过匹配的时刻匹配将NOMA用户的接收力视为Gamma随机变量。这允许在干扰消除(IC)下的中断的易诊表达,同时在建模各种传播环境中灵活。我们的分析表明,在某些条件下,IRS的存在可能会降低对基站(BS)具有主导视线(LOS)的用户的性能,而通过非视线主导的用户( NLOS将始终受益于它。

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