Hairong Sun, Y. Cao, Kishor S. Trivedi, James J. Han
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引用次数: 13
摘要
在本文中，我们比较了无线时分多址系统有和没有自动保护交换的可用性和性能。利用SPNP (Stochastic Petri net Package)构造和求解随机奖励网络模型。采用层次分解方法简化分析。研究了切换呼叫保留保护通道数量的优化问题。数值结果证明了分解的准确性，并显示了自动保护切换带来的新的呼叫阻塞概率和切换呼叫丢失概率的可用性和性能指标的显著提高。
Availability and performance evaluation for automatic protection switching in TDMA wireless system
In this paper, we compare the availability and performance of a wireless TDMA system with and without automatic protection switching. Stochastic reward net models are constructed and solved by SPNP (Stochastic Petri Net Package). Hierarchical decomposition is adopted to simplify the analysis. The optimization of the number of guard channels reserved for the handoff calls is studied. Numerical results prove the accuracy of the decomposition and show the significant improvement of the availability and the performance indexed as the new call blocking probability and handoff call dropping probability, brought by automatic protection switching.
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