This paper investigates the imperfect channel state information that is caused by the channel estimation error and feedback delay effects on the leakage rate analysis for the cooperative nonorthogonal multiple access networks. The investigation considers a dual hop one‐/two‐way nonorthogonal multiple access‐based information exchange process with the aid of half‐/full‐duplex untrustworthy wireless relaying network for the leakage rate analysis. The channel estimation error causes system coding gain losses while the feedback delay does not have any effect on the users' outage performance at untrustworthy relay terminal in low signal‐to‐noise ratio regimes. Conversely, the channel estimation error effects become negligible while the feedback delay causes system coding gain losses on the users' outage performance at untrustworthy relay terminal in high signal‐to‐noise ratio. Results also reveal that the untrustworthy relay terminal, which is under the effect of the channel estimation error and feedback delay, is being active between and ‐  dB. Beyond ‐  dB, the untrustworthy relay terminal becomes out of order and saturates. The Monte Carlo–based simulation results are in agreement with the analytical and asymptotic derivations.

中文翻译：

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协作非正交多址网络中具有不完善信道状态信息的泄漏率分析

本文研究了由信道估计误差和反馈延迟对协作非正交多址网络泄漏率分析造成的不完善的信道状态信息。该调查考虑了借助半/全双工不可信无线中继网络的双跳单向/双向非正交多址访问信息交换过程，以进行泄漏率分析。信道估计误差导致系统编码增益损失，而在低信噪比条件下，反馈延迟对不可信中继终端的用户中断性能没有任何影响。相反，信道估计误差的影响可忽略不计，而反馈延迟则导致用户的系统编码增益损失 高信噪比下不可靠中继终端的断电性能。结果还表明，在信道估计误差和反馈延迟的影响下，不可信赖的中继终端在和-  分贝。超越-  分贝，不可信赖中继端子成为顺序和饱和的。基于蒙特卡洛的模拟结果与解析和渐近推导一致。