Abstract:

To resolve the problem of access point overload in WLAN (Wireless Local Area Network), a loadbalancing algorithm based on the access point selection and adaptive handoff is presented. In the algorithm, RSSI (Received Signal Strength Indication), MAC (Media Access Control) frame transmission delay and other f
actors are taken into consideration to select the access point. Meanwhile, it makes a positive response to the station of gusty traffic with minimal access point handoff to balance the entire network load. The algorithm can explicitly select the access point of the idle channel, and balance the load of access points. Then it effectively improves system throughput and reduces transmission delay of the packet. Compared with the traditional algorithms, it improves system throughput by 13.6%.

Key words: wireless local area network (WLAN), load balance, access point selection