Resource Sharing Optimization for Device-to-Device Communication Underlaying Cellular Networks
Resource Sharing Optimization for Device-to-Device Communication Underlaying Cellular Networks
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DOI：
10.1109/twc.2011.060811.102120
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发表时间：
2011-08-01
影响因子：
10.4
通讯作者：
Tirkkonen, Olav
中科院分区：
文献类型：
--
作者：
Yu, Chia-Hao;Doppler, Klaus;Tirkkonen, Olav
我们考虑蜂窝网络下的设备到设备（D2D）通信以改善本地服务。该系统旨在优化共享资源上的吞吐量，同时满足优先级的蜂窝服务约束。针对不同的资源共享模式，分析了共享相同资源的蜂窝和D2D连接之间的最佳资源分配和功率控制。最优性的实际约束，如最小和最大频谱效率的限制，最大发射功率或能量限制下进行了讨论。它被发现，在大多数情况下，所考虑的资源共享模式的最佳功率控制和资源分配，可以解决封闭的形式或从一个有限的集合中搜索。D2 D底层系统的性能在单小区场景和具有多个赢家II A1办公楼的曼哈顿网格环境中进行评估。结果表明，通过适当的资源管理，D2D通信可以有效地提高总吞吐量，而不会对蜂窝网络产生有害的干扰。
We consider Device-to-Device (D2D) communication underlaying cellular networks to improve local services. The system aims to optimize the throughput over the shared resources while fulfilling prioritized cellular service constraints. Optimum resource allocation and power control between the cellular and D2D connections that share the same resources are analyzed for different resource sharing modes. Optimality is discussed under practical constraints such as minimum and maximum spectral efficiency restrictions, and maximum transmit power or energy limitation. It is found that in most of the considered cases, optimum power control and resource allocation for the considered resource sharing modes can either be solved in closed form or searched from a finite set. The performance of the D2D underlay system is evaluated in both a single-cell scenario, and a Manhattan grid environment with multiple WINNER II A1 office buildings. The results show that by proper resource management, D2D communication can effectively improve the total throughput without generating harmful interference to cellular networks.