Location fprecast scheme using the differential value of received signal strength in wireless network = Location forecast scheme using the differential value of received signal strength in wireless network

다국어 초록 (Multilingual Abstract)

We propose a method that an MS (Mobile Station) forecasts a target area by using the differential value of RSSI (Received Signal Strength Indicator) in handoff process. The RSSI value will increase if the MS gets near to a BS (Base Station) and vice versa. If an MS goes to a BS and then turns its direction toward another BS, the RSSI value from the previous BS will increase and then decrease. At turning point, the differential RSSI value from the BS will change into minus from plus. By using this mechanism, we can forecast the direction of a moving MS. Therefore proposed scheme can be effectively used in the region, in which an MS changes its wireless cell frequently.