Power control and QoS of a CDMA based hierarchical cell structure network
TENCON 99. Proceedings of the IEEE Region 10 Conference（1999）
摘要
The hierarchical cell structure is needed for different requirements: large cells guarantee continuous coverage, while small cells are necessary to achieve good spectrum efficiency and high capacity. In this paper a CDMA system in macro/micro cell structure is investigated. We propose an adaptive scheme of controlling cell size according to time-varying traffic distribution in a macro/micro overlaid cell environment. This aims to bring communications quality in both macro-cell and micro-cell to a target quality level. Simulation results show that the proposed scheme effectively controls the time-varying traffic fluctuations and provides an enhanced performance
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关键词
adaptive control,cellular radio,code division multiple access,microcellular radio,power control,quality of service,telecommunication control,telecommunication traffic,cdma based hierarchical cell structure network,qos,adaptive scheme,cell size,continuous coverage,enhanced performance,high capacity,macro cell structure,micro cell structure,overlaid cell environment,simulation,spectrum efficiency,target quality level,time-varying traffic distribution,time-varying traffic fluctuations,interference,base stations,spectrum,mobile communication
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