论文标题
完整双工蜂窝网络的上行链路和下行链路性能界限
Uplink and Downlink Performance Bounds for Full Duplex Cellular Networks
论文作者
论文摘要
使用完整的双链体（FD），无线终端能够在相同的频率资源中同时传输和接收数据，但是，它引入了自我干扰和共通中干扰。即使出现了各种信号处理技术以取消自我干扰，但蜂窝系统中FD性能的瓶颈是来自其他上行链路和下行链路信号的共通道干扰。在这项工作中，我们研究了FD蜂窝网络的上行链路和下行链路表演，在该网络中，用户在上行链路中采用了分数功率控制。我们使用Matern群集过程对网络进行建模，该过程提供了一个可拖动且现实的模型，以表征上行链路电源控制所需的用户基础站距离。基于获得的覆盖概率，费率及其稳健近似值，我们表明，尽管FD改善了下行链路性能，但它严重损害了上行链路性能。另外，我们在上行链路和下行链路表演之间提供了权衡。我们的研究表明，低电力基站的密集部署可以改善FD系统的性能。
With Full Duplex (FD), wireless terminal is capable of transmitting and receiving data simultaneously in the same frequency resources, however, it introduces self interference and co-channel interference. Even though various signal processing techniques are emerged to cancel the self interference, the bottleneck for FD performance in cellular systems is the co-channel interference from the other uplink and downlink signals. In this work we have studied both the uplink and downlink performances of a FD cellular network, where users employ fractional power control in uplink. We use Matern Cluster Process to model the network, which provides a tractable and realistic model to characterize the user-base station distances which are needed for uplink power control. Based on the obtained coverage probabilities, rates and their robust approximations, we show that while FD improves downlink performance, it severely hurts the uplink performance. Also, we provide a trade-off between uplink and downlink performances. Our study suggests dense deployment of low power base stations can improve the performance of FD system.
