Resource Allocation for D2D Communications Underlaying a NOMA-Based Cellular Network
Resource Allocation for D2D Communications Underlaying a NOMA-Based Cellular Network
复制标题
基于 NOMA 的蜂窝网络的 D2D 通信的资源分配
DOI：
10.1109/lwc.2017.2759114
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发表时间：
2018-02-01
影响因子：
6.3
通讯作者：
Chen, Ming
中科院分区：
文献类型：
--
作者：
Pan, Yijin;Pan, Cunhua;Chen, Ming
这封信调查的功率控制和信道分配问题，在设备到设备（D2D）通信的基础上的非正交多址（NOMA）蜂窝网络。在连续干扰消除解码顺序约束下，我们的目标是最大化D2D对的和速率，同时保证基于NOMA的蜂窝用户的最小速率要求。具体地说，蜂窝用户在每个子信道上的功率控制的最佳条件推导。然后，基于这些结果，我们提出了一个基于对偶的迭代算法来解决资源分配问题。仿真结果验证了所提出的资源分配算法优于现有的正交多址接入方案。
This letter investigates the power control and channel assignment problem in device-to-device (D2D) communications underlaying a non-orthogonal multiple access (NOMA) cellular network. With the successive interference cancellation decoding order constraints, our target is to maximize the sum rate of D2D pairs while guaranteeing the minimum rate requirements of NOMA-based cellular users. Specifically, the optimal conditions for power control of cellular users on each subchannel are derived first. Then, based on these results, we propose a dual-based iterative algorithm to solve the resource allocation problem. Simulation results validate the superiority of proposed resource allocation algorithm over the existing orthogonal multiple access scheme.