A New Channel Allocation Scheme for Hierarchical Wireless Networks  

作　　者：赵方明 蒋铃鸽 何晨 

机构地区：[1]Department of Electronic Engineering, Shanghai Jiaotong University

出　　处：《Journal of Shanghai Jiaotong university(Science)》2008年第1期40-45,共6页上海交通大学学报（英文版）

基　　金：The National Natural Science Foundation of China (No. 60372076)

摘　　要：A channel allocation scheme for hierarchical wireless networks was proposed in terms of the connection-level quality of service. The channel allocation scheme was analyzed using both horizontal channel borrowing and vertical traffic overflowing. Pre-emptive priority strategies are used to classify real-time services and non-real-time services, real-time service is given higher priority for it is allowed to pre-empt channels used by non-real-time service. Some channel borrowing thresholds and acceptance ratios are used to avoid channel locking or dynamic power control, which can also be dynamically adjusted according to network load. Simulation results show that the proposed schemes can improve the system performance.A channel allocation scheme for hierarchical wireless networks was proposed in terms of the connection-level quality of service. The channel allocation scheme was analyzed using both horizontal channel borrowing and vertical traffic overflowing. Pre-emptive priority strategies are used to classify real-time services and non-real-time services, real-time service is given higher priority for it is allowed to pre-empt channels used by non-real-time service. Some channel borrowing thresholds and acceptance ratios are used to avoid channel locking or dynamic power control, which can also be dynamically adjusted according to network load. Simulation results show that the proposed schemes can improve the system performance.

关 键 词：channel allocation vertical traffic overflowing horizontal channel borrowing pre-emptive priority blocking probability 

分 类 号：TN929.5[电子电信—通信与信息系统]