一种基于优先级借用的信道分配方案  

Channel Assignment Based on Priority Borrowing

作　　者：程江[1] 朱世华[1] 党安红[1] 

机构地区：[1]西安交通大学电子与信息工程学院,西安710049

出　　处：《西安交通大学学报》2001年第12期1232-1235,共4页Journal of Xi'an Jiaotong University

基　　金：国家自然科学基金资助项目 (6 0 0 72 0 40 )

摘　　要：提出了一种基于优先级的信道借用方案 .该方案为每个小区的名义信道设定借用优先级 ,并在借用时判断信道的载干比是否满足门限要求 .这种方案设计避免了繁琐的借用闭锁以及大量的信道状态交换 ,因此适合于应用复杂的动态信道分配有困难的GSM系统 .仿真结果表明 ,该方案能够有效降低热点区域的阻塞率 。A novel channel borrowing scheme based on priority (CBP) is presented. In this scheme, each nominal channel of a cell has its priority for borrowing. When a channel is borrowed, its CIR (Carrier to Interference Ratio) is measured. By this strategy, numerous borrowing locking and signaling exchanging are needless. This characteristic is necessary for application in GSM systems. The simulation shows that this scheme can reduce blocking rate and improve capacity in hotspot traffic model evidently.

关 键 词：信道借用 信道动态分配 蜂窝系统 移动通信 GSM系统 优先级借用 阻塞率 

分 类 号：TN929.53[电子电信—通信与信息系统]