DYNAMIC GUARD CHANNEL ASSIGNMENT FOR BIDIRECTIONAL CALL-OVERFLOW SCHEME IN HIERARCHICAL CELLULAR SYSTEM  

作　　者：Shan Wenhao Fan Pingzhi(institute of Mobile Communications, Southwest Jiaotong University, Chengdu 610031) 

出　　处：《Journal of Electronics(China)》2003年第4期255-264,共10页电子科学学刊（英文版）

基　　金：Supported in part by the National Natural Science Foundation of China(No.69825102)

摘　　要：In this paper, a Hierarchical Cellular System (HCS) supporting two classes of users with high and low velocity is considered. Based on the analytical model of the bidirectional calloverflow scheme, a new dynamic guard channel assignment method is proposed In this method, the number of guard channels in both macrocells and microcells varies in realtime according to the different call traffic load in the HCS, and as a result, the lowest dissatisfaction grade of users is achieved.In this paper, a Hierarchical Cellular System (HCS) supporting two classes of users with high and low velocity is considered. Based on the analytical model of the bidirectional call-overflow scheme, a new dynamic guard channel assignment method is proposed. In this method, the number of guard channels in both macrocells and microcells varies in realtime according to the different call traffic load in the HCS, and as a result, the lowest dissatisfaction grade of users is achieved.

关 键 词：HCS OVERFLOW Markov process Guard channel Dissatisfaction grade 

分 类 号：TN911.2[电子电信—通信与信息系统]