New handoff initiation algorithm (optimum combination of hysteresis & threshold based methods)

Four major handoff initiation methods (maximum power handoff (MPH), absolute received power with threshold (TB), relative received power with threshold (RTB) and HYS) is introduced and by simulation in a ten-cell structure, they are compared based on performance metrics (e.g. HO, OUT, Ping-Pong and Delay). By employing handoff execution phase considerations in order to increase mean number of candidate base-stations, modified versions of algorithms are suggested. In order to improve the handoff initiation phase, optimum combination of hysteresis and threshold based methods are then presented. The new offered algorithm is a generalized combined form of hysteresis and threshold based methods with the consideration of all adequate base-stations