Comparative Study of WLAN Simulation with NS2

During the process of communication in WLAN, delay and packet loss frequently happens,In order to solve this problem we simulate with NS2 for better communication strategies.According to the relationship between topological range and trasmission speed, number of nodes and performance of delay,we assign dynamic transmission speed to acquire an optimal transmission speed and topological range and communication distance,all of which contribute to a minimal probability of confliction in channel contention for network nodes and the least delay.Thus the optimal system performance is achieved.