论文标题
在D-TDD和FFR下的小细胞网络的吞吐量分析
Throughput Analysis of Small Cell Networks under D-TDD and FFR
论文作者
论文摘要
动态时间划分双链体（D-TDD）已成为一种有效的解决方案，以适应小细胞网络中未对齐的下行链路和上行链路流量。但是，流量配置的灵活性也引入了其他间隔干扰。在这封信中，我们研究了将分数频率再利用（FFR）作为D-TDD小细胞网络的干扰协调技术的有效性。我们得出下行链路和上行链路平均数据包吞吐量（MPT）的分析表达式，然后研究网络参数优化问题，以最大程度地提高MPT，同时保证每个用户的吞吐量。数值结果证实了基于FFR的D-TDD在改善吞吐量方面的好处。
Dynamic time-division duplex (D-TDD) has emerged as an effective solution to accommodate the unaligned downlink and uplink traffic in small cell networks. However, the flexibility of traffic configuration also introduces additional inter-cell interference. In this letter, we study the effectiveness of applying fractional frequency reuse (FFR) as an interference coordination technique for D-TDD small cell networks. We derive the analytical expressions of downlink and uplink mean packet throughput (MPT), then study a network parameter optimization problem to maximize MPT while guaranteeing each user's throughput. Numerical results corroborate the benefits of the proposed FFR-based D-TDD in terms of improving throughput.
