Achievable Rate of the Multiuser Two-Way Full-Duplex Relay System
Achievable Rate of the Multiuser Two-Way Full-Duplex Relay System
复制标题
多用户双向全双工中继系统可达到的速率
DOI：
10.1109/tvt.2018.2789843
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发表时间：
2018-01
影响因子：
6.8
通讯作者：
Yang Guanghua
中科院分区：
文献类型：
--
作者：
Li Cheng;Xia Bin;Jiang Qianmin;Yao Yao;Yang Guanghua
针对传统的独立同分布衰落信道假设，研究了独立非同分布衰落信道下多用户双向全双工中继系统的可达速率。衰落信道，这导致不同用户对的不同选择概率和不同加权速率，也有助于整个系统的可达速率。具体来说，我们首先推导出i.ni.d.的最大-最小调度方案的用户对选择概率。渠道然后，基于选择概率，我们解决了每个对的加权率推导的难题。最后，根据全概率定理，得到了系统可达速率的一般表达式。此外，理论评估和数值模拟进行。仿真结果验证了理论分析的正确性，并揭示了FD模式的优越性，特别是在低发射功率区。
In contrast to the traditional assumption of the independent and identically distributed fading channels, this paper studies the achievable rate of the multiuser two-way full-duplex (FD) relay system under the independent and nonidentically distributed (i.ni.d.) fading channels, which leads to the different selection probabilities and different weighted rates of different user pairs contributing to the overall system achievable rate as well. To be specific, we first derive the user pair selection probabilities of the max–min scheduling scheme for the i.ni.d. channels. Then, based on the selection probabilities, we solve the hard problem of the weighted rate derivation of each pair. Finally, according to the total probability theorem, the general expressions of the system achievable rate are obtained. In addition, theoretical evaluations and numerical simulations are conducted. The results verify the accuracy of the theoretical analysis and reveal the superiority of the FD mode especially within the low transmitting power regime.
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