一种适用于NGSO MSS网络的混合信道分配方案  

A Hybrid Channel Assignment Scheme for NGSO MSS Networks

作　　者：刘光辉[1] 朱中梁[1] 

机构地区：[1]电子科技大学宽带光纤传输与通信系统技术国家重点实验室,成都610054

出　　处：《电子科技大学学报》1999年第3期228-232,共5页Journal of University of Electronic Science and Technology of China

摘　　要：针对ＮＧＳＯＭＳＳ网络的动态特性，提出了一种适用于该网络的混合信道分配方案。在该方案中，固定信道采用非均匀压缩图案分配算法分配给各小区作为标称信道专用，并定期根据变化了的业务条件进行重新分配，动态信道的指派采用最先可行ＦＡ（ＦｉｒｓｔＡｖａｉｌａｂｌｅ）算法。仿真结果表明，在较宽的负载范围内，运用该方案比固定信道分配方案均有更好的性能，并能有效地降低切换呼叫和信道更新期间的呼损率，从而显著提高网络的业务承载量。According to the dynamic features of NGSO MSS networks,this paper puts forward ahybrid channel assignment scheme.In the scheme,fixed channels are allocated to cells for exclusive use asnominal channels and reallocated after periodic time in terms of time-variant traffic distribution usingununiform compact pattern allocation algorithm. Available algorithm is used to assign dynamic channels.Computer simulation results show that the HCA scheme has better performance compared with FCAscheme and can effectively reduce handover failure and call disruption rates on channel updating times,thus greatly improve network traffic-carrying capacity.

关 键 词：卫星移动通信 混合信道分配 服务等级 NGSOMSS 

分 类 号：TN927.2[电子电信—通信与信息系统] TN929.5[电子电信—信息与通信工程]