Dynamic resource management framework for wireless LAN

Abstract

Distributed middleware technology is emerging as a flexible promising solution for network resource management and QoS (Quality of Service) control in a distributed environment. The concept of dynamic bandwidth reservation (DBR) algorithm additionally allocates the terminated bandwidth for an ongoing call is one of the promising methods to reduce the new call blocking and handoff call dropping probabilities. Dynamic resource management (DRM) framework concentrates on design and developing a framework for allocating shared resources to support multiple QoS and to provide probabilistic assurances of service in wireless networks. Existing methods and architecture do not guarantee on resource allocation and management in mobile, wireless and ad hoc networks. When a mobile node (MN) moves from its home network (HN) to foreign network (FN), the minimal required resources and services can be provided locally in the current network where it is connected presently. Dynamic resource management (DRM) framework provides an application level simulator for wireless network with new QoS management concept. DRM framework comprises of a set of programmable distributed objects and distributed middleware. DRM framework is constructed using distributed objects and distributed middleware. Distributed object carry applications across networks and allow them to connect to local server with FN in the same way as they had moved from the HN. The framework must dynamically accommodate multimedia calls with different bandwidth requirements in response to network traffic and it supports mobility management. The utility of DRM framework describes how the required resources are reserved based on the user priority option in an adaptive manner. The proposed DBR algorithm guarantees the required bandwidth during call setup and handoff without any flow rejection.