The cooperative device-to-device (D2D) network employing non-orthogonal multiple access (NOMA) is expected to play an important role in the next-generation wireless networks. In this work, the authors derive outage probability expressions of a cooperative NOMA D2D network which employs decode-and-forward relaying. A wireless link experiencing Nakagami- m fading is considered which is further assisted in the communication network by a wired link which is a powerline communication link and experiences Rayleigh fading. The outage analysis, shown for both the strong user and the weak user, is derived assuming that at the receiver there is perfect successive interference cancellation. Employing power division NOMA, optimum value for the coefficient of power allocation is obtained corresponding to the minimum probability of outage of the strong user. Furthermore, a range of the NOMA power allocation coefficient is provided for the communication link at the weak user which is between the wireless and the powerline link. Symbol error probability expressions are also derived for the strong and the weak users for the scenario when: i) both the wireless and the wired links are available for communication and ii) only the wireless link is available for communication.

中文翻译：

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与NOMA合作的D2D通信网络的性能分析

预期采用非正交多址访问（NOMA）的协作设备到设备（D2D）网络将在下一代无线网络中发挥重要作用。在这项工作中，作者推导了采用解码转发中继的协作式NOMA D2D网络的中断概率表达式。经历中神-的无线链接 米认为衰落是通过电力线通信链路的有线链路在通信网络中进一步辅助的，并且经历瑞利衰落。假设在接收器处有完美的连续干扰消除，则可以得出针对强用户和弱用户均显示的中断分析。通过使用功率分配NOMA，可获得与强用户中断的最小概率相对应的功率分配系数的最佳值。此外，为无线和电力线链路之间的弱用户处的通信链路提供了NOMA功率分配系数的范围。在以下情况下，还会为场景的强用户和弱用户导出符号错误概率表达式：