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Performance Evaluation of Scalable Congestion Control Schemes for Elastic Traffic in Cellular Networks with Power Control

机译:具有功率控制的蜂窝网络中弹性业务可扩展拥塞控制方案的性能评估

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摘要

This paper deals with the performance evaluation of some congestion control schemes for elastic traffic in wireless cellular networks with power allocation/control. These schemes allow us to identify the {em feasible configurations of instantaneous} up- and downlink {em bit-rates} of users; i.e., such that {em can be obtained by allocating respective powers}, taking into account in an exact way the interference created in the whole, multicellular network. We consider the bit-rate configurations identified by these schemes as {em feasible sets for some classical, maximal fair resource allocation policies}, and study their performance in the long-term evolution of the system. Specifically, we assume Markovian arrivals, departures and mobility of customers, which transmit some given data-volumes, as well as some temporal channel variability (fading), and study the {em mean throughput} i.e., the mean bit-rates that the policies offer in different parts of a given cell. Explicit formulas are obtained in the case of {em proportional fair policies}, which may or may-not take advantage of the fading, for {em null} or {em infinitely rapid customer mobility}. This approach applies also to a channel shared by the elastic traffic and a strea ing, with predefined customer bit-rates,regulated by the respective admission policy.
机译:本文与同功率分配/控制无线蜂窝网络的弹性交通拥堵的一些控制方案的性能评估交易。这些方案使我们能够识别{瞬间 EM可行的配置}上调和用户的下行{ EM位率};即,使得{ EM可以通过分配的各自的功率得到},考虑到在一个精确的方式整体而言,多细胞网络中产生的干扰。我们认为这些方案为{ EM可行集一些经典的,最大的公平资源分配策略}确定的比特率的配置,并在系统的长期演进研究它们的性能。具体而言,我们假设马氏抵港,离港和客户,这传递某些给定的数据量的流动性,以及一些时间通道变化(褪色),并研究{ EM平均吞吐量}即平均比特率的政策在给定的细胞的不同部分提供。明确的公式在{ EM比例公平政策},这可能会或可能,不采取衰落,对于{ EM空}或{ EM无限客户快速移动}的优势的情况下获得的。这种方法也适用于由弹性交通和STREA ING共享信道,使用预定义的客户比特率,由各自的招生政策规定。

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