DYNAMIC GUARD CHANNEL ASSIGNMENT FOR BIDIRECTIONAL CALL-OVERFLOW SCHEME IN HIERARCHICAL CELLULAR SYSTEM
ShanWenhao, FanPingzhi · Acta Scientiarum Naturalium Universitatis Sunyatseni · 2003
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.