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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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摘要

Several channel-allocation algorithms have been proposed in the literature for traditional cellular networks with static base stations (BSs), while not much attention has been given to channel-allocation problems for cellular networks where BSs are mobile. In cellular networks with mobile BSs (MBSs), the network topology is dynamic due to the mobility of the BSs. This makes the channel-allocation problem in such networks more challenging. Moreover, the MBSs may fail and degrade the performance of the cellular network. Therefore, it is desirable that the channel-allocation algorithm be fault tolerant. Thus, even in the presence of failure of the MBSs, the channel-allocation algorithm should work reasonably well. It is also desirable to design a channel-allocation approach that guarantees that the request from a mobile host (MH) is responded to in a timely manner. In this paper, a distributed dynamic channel-allocation algorithm that addresses these problems in cellular networks with MBSs is proposed. The proposed algorithm is fault tolerant and guarantees that the time to respond to an MH's request for supporting a call is upperbounded. The performance evaluation of the proposed algorithm shows that the proposed algorithm performs well, even in the presence of failure of the MBSs
机译:在文献中已经针对具有静态基站(BS)的传统蜂窝网络提出了几种信道分配算法,而对于其中BS是移动的蜂窝网络的信道分配问题却没有给予太多的关注。在具有移动BS(MBS)的蜂窝网络中,由于BS的移动性,网络拓扑是动态的。这使得这种网络中的信道分配问题更具挑战性。此外,MBS可能会发生故障并降低蜂窝网络的性能。因此,期望信道分配算法是容错的。因此,即使在MBS出现故障的情况下,信道分配算法也应该可以正常工作。还期望设计一种信道分配方法,该方法保证来自移动主机(MH)的请求得到及时响应。本文提出了一种分布式动态信道分配算法,该算法解决了具有MBS的蜂窝网络中的这些问题。所提出的算法是容错的,并确保响应MH支持呼叫的请求的时间是上限。对所提算法的性能评估表明,即使在MBS出现故障的情况下,所提算法仍具有良好的性能。

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