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On spectrum sharing in narrowband cellular wireless networks

机译:窄带蜂窝无线网络中的频谱共享

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We study secondary spectrum sharing in narrowband cellular networks in which calls in neighboring cells need to be assigned different channels. Analysis of such networks are in general difficult due to large state spaces and lack of closed form expressions. Here we consider linear topologies and show that they lend themselves to exact analysis. We analyze four sharing policies where equilibrium distribution of cell occupancies is a Markov random field. For each policy we derive closed form expressions for the equilibrium distributions in the form of a product of certain stochastic matrices. This characterization leads to tractable computation of equilibrium distributions and blocking probabilities. We use the obtained results to compare the policies in terms of (i) maximum revenue, and (ii) secondary price-demand pairs that lead to positive profit for the network service provider.
机译:我们研究了窄带蜂窝网络中的次要频谱共享,在该网络中,相邻小区中的呼叫需要分配不同的信道。由于较大的状态空间和缺乏封闭形式的表达,通常难以对此类网络进行分析。在这里,我们考虑线性拓扑,并表明它们有助于进行精确的分析。我们分析了四种共享策略,其中单元格占用的均衡分布是马尔可夫随机场。对于每种策略,我们以某些随机矩阵的乘积形式导出平衡分布的封闭形式表达式。这种表征导致对平衡分布和阻塞概率的易于计算。我们使用获得的结果在(i)最大收入和(ii)二级价格需求对方面比较策略,这些对价格对导致网络服务提供商获得正利润。

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