A bandwidth allocation/sharing/extension protocol for multimedia over IEEE802.11 Ad hoc wireless LANs

In this paper, we will propose a novel bandwidth allocation/sharing/extensi on (DBASE) protocol to support both asynchronous traffics and multimedia tr affics with the characteristics of variable bit rate (VBR) and constant bit rate (CBR) over IEEE 802.11 ad hoe wireless local area networks. Overall q uality of service (QoS) will be guaranteed by DBASE. The designed DBASE pro tocol will reserve bandwidth for real-time stations based on a fair and eff icient allocation. Besides, the proposed DBASE is still compliant with the IEEE 802.11 standard. The performance of DBASE is evaluated by analysis and simulations. Simulations show that the DBASE is able to provide almost 90% channel utilization and low packet loss due to delay expiry for real-time multimedia services.