Abstract
In the few last years, the deployment of IEEE 802.11 WLAN in hotspots environment had becoming a useful solution providing practical and attractive communication characteristics. However the problem of user bandwidth availability arises as one of the most limit of this solution. In fact, the IEEE 802.11 standards do not provide any mechanism of loading distribution among different Access Points of the network. Then an AP can be heavily overloaded leading to station throughput degradation. This paper deals with this problem. It focuses on the presentation of QoS (Quality of Service) management solution for wireless communication system. It, mainly, presents a protocol structure between mobile and AP. This protocol is intended to provide best resources allocation and efficiency on communication metrics. An SDL description and MSC simulation is provided as a first step in the development of this protocol. Key words. Load Balancing, QoS Protocol, Wi-fi, SDL.