BASE STATION COOPERATION BASED ON LOCATION-AIDED IN CELLULAR SYSTEM

Base station cooperation will bring a certain delay due to a series of signaling information exchange, cooperation strategy on base station based on location-aided is proposed in this paper. Future location information is provided by moving speed and direction to predict track of user. Signal strength and adjacent cell load combining with location information will be constraints to selecting cooperative base station. User can execute signaling interaction in advance with network before signal strength down to an intolerable to reduce delay to increase satisfaction of users. Meanwhile, Quality of signal in edge of cell is improved due to base station cooperation and handover requests decrease in the process of user mobility. Then unnecessary handover is avoided. Comparing with no location-aided, pseudo cooperative request and cooperative setting updating will be reduced. It was shown that base station cooperation based on location-aided we provided can reduce system overhead and increase system capacity.