移动/无线网络中的分布式呼叫接纳控制

M. Naghshineh, M. Schwartz
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引用次数: 534

摘要

本文主要研究移动/无线网络中的分布式呼叫接纳控制,其目的是限制丢失系统中的呼叫切换丢失概率或无损系统中的小区过载概率。无线网络的拥塞会导致切换中断或小区过载。我们的呼叫接纳控制算法除了考虑发出新呼叫请求的单元中的呼叫数外,还考虑相邻单元中的呼叫数,以便做出呼叫接纳决策。这是由每个基站以分布式方式完成的,而不需要网络调用处理器的参与。录取规则非常简单,可以实时做出录取决定。此外,我们证明了我们的分布式呼叫接纳控制方案将切换丢失或单元过载概率限制在一个预定义的水平,几乎与负载条件无关。这是具有服务质量供应的未来无线/移动网络的一个重要要求。
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Distributed call admission control in mobile/wireless networks
The major focus of this paper is distributed call admission control in mobile/wireless networks the purpose of which is to limit the call hand-off dropping probability in loss systems or the cell overload probability in lossless systems. Hand-off dropping or cell overload are consequences of congestion in wireless networks. Our call admission control algorithm takes into consideration the number of calls in adjacent cells in addition to the number of calls in the cell where a new call request is made, in order to make a call admission decision. This is done by every base station in a distributed manner without the involvement of the network call processor. The admission rule is simple enough that the admission decision can be made in real time. Furthermore, we show that our distributed call admission control scheme limits the hand-off dropping or the cell overload probability to a predefined level almost independent of load conditions. This is an important requirement of future wireless/mobile networks with quality-of-service provisioning.
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