Wireless Networks with Adaptive Resource Management

Abstract

Supporting multimedia services in wireless networks presents more challenges than in a wired network due to the limited bandwidth resources and the highly variable environment. Furthermore, user’s mobility makes it more complicated to achieve the desired QoS level of multimedia services. For these reasons, the best a system can do is to provide different QoS according to different service requests from end users under the constraint of limited and varying bandwidth re-sources. This has been one of the key elements in the design of the existing network infrastructure providing QoS to multimedia applications, such as ATM, IP InteServ, and DiffServ. Motivated by the same concept, we investigate adaptive resource allocation for multimedia services in a wireless network environment. Both user mobility and multimedia traffic characteristics are taken into consideration in the development of the proposed adaptive scheme.