论文标题
通过管道LTE和DOCSIS减少移动回程的潜伏期
Latency Reduction for Mobile Backhaul by Pipelining LTE and DOCSIS
论文作者
论文摘要
小细胞市场一直在增长。对于来自小单元的无线流量，移动网络运营商（MNOS）正在研究经济上可行的解决方案，特别是混合纤维同轴网络（HFC），除了传统的纤维选择外。当将无线和HFC网络的潜伏期添加在一起时，它可能会导致明显的端到端系统潜伏期，尤其是在网络拥塞下。如果两个网络可以以某种方式彼此协调，则可以降低系统延迟并提高系统性能。在本文中，我们提出了一种通过协调LTE和HFC调度来改善上游用户对移动核心延迟的方法。该方法从HFC网络的Request-Grant-DATA循环减少了对系统潜伏期的影响，后者是上游延迟的主要贡献者。通过模拟，我们表明协调的调度可以改善整体系统延迟。
The small cell market has been growing. To backhaul wireless traffic from small cells, the mobile network operators (MNOs) are looking into economically viable solutions, specifically the hybrid fiber coaxial networks (HFC), in addition to the traditional choice of fiber. When the latencies from both the wireless and the HFC networks are added together, it can result in noticeable end-to-end system latency, particularly under network congestion. If the two networks could somehow coordinate with each other, it would be possible to decrease the total system latency and increase system performance. In this paper, we propose a method to improve upstream user-to-mobile core latency by coordinating the LTE and HFC scheduling. The method reduces the impact on system latency from the HFC network's request-grant-data loop, which is the main contributor of backhaul upstream latency. Through simulation, we show that coordinated scheduling improves overall system latency.
