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A Fault-Tolerant Channel-Allocation Algorithm for Cellular Networks With Mobile Base Stations

机译:具有移动基站的蜂窝网络的容错信道分配算法

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In this paper, the performance of scheduling algorithms exploiting the multiuser selection diversity is studied. The authors consider schedulers with affordable-rate transmission and adaptive transmission based on the absolute signal-to-noise ratio (SNR) and the normalized SNR. In contrast to previous studies on multiuser diversity systems, channel dynamics is taken into consideration in this paper by a novel formulation based on the level-crossing analysis of stochastic processes. Then, a connection is made between the Doppler frequency shift, which indicates the channel temporal correlation, and the average (channel) access time, the average waiting time between accesses, and the average access rate of active users. These properties are important for the scheduler design, especially for applications where delay is a concern. In addition, analytical expressions for the system throughput and the degree of fairness when users have nonidentical average channel conditions are presented. These expressions quantify the effect of disparateness in users' average channel conditions on the system performance
机译:本文研究了利用多用户选择分集的调度算法的性能。作者考虑了基于绝对信噪比(SNR)和归一化SNR的可负担速率传输和自适应传输的调度器。与先前对多用户分集系统的研究相比,本文基于随机过程的交叉分析,通过新颖的公式考虑了信道动态。然后,在表示信道时间相关性的多普勒频移与平均(信道)访问时间,两次访问之间的平均等待时间和活动用户的平均访问速率之间建立连接。这些属性对于调度程序设计非常重要,尤其是对于延迟很重要的应用程序。此外,还给出了当用户具有不同的平均信道条件时系统吞吐量和公平程度的解析表达式。这些表达式量化了用户平均信道条件差异对系统性能的影响

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