Study Of Wireless Ad Hoc Network Based On WTRP

Ad Hoc wireless network is a multihop wireless network that has the characteristic of self-organizing. In an Ad Hoc network, mobile nodes form a network without the need for a fixed infrastructure such as base stations or access points. Because of these characters, Ad Hoc networks can be widely used in military, sensor network, emergency and personal area networks.Most research in Ad Hoc field is based upon MAC protocol based on competitive mechanism. In an unreliable medium such as wireless, problem of providing quality of service (QoS) at the MAC layer is essential. Current wireless MAC protocols based on competitive mechanism can not provide the quality of service guarantees that are required by some applications. The IEEE 802.11 in PCF (Point Coordination Function) mode, the HiperLAN and Bluetooth achieve bounded latency by having a central station poll the slave stations provide the quality of service guarantees. But the centralized approach is not suitable for Mobile Ad Hoc networks. So the research in wireless MAC protocols based on distributed poll mechanism is important in some applications.A distributed MAC protocol with Quality of Service guarantees for Ad Hoc network-wireless token ring protocol(WTRP) is introduced in this paper. These projects impose stringent bandwidth, latency, and speed of failure recovery requirements on the medium access protocol.Firstiy, The research is emphasized on Wireless Token Ring Protocol .Secondly, We have finished the work including high level design of system architecture, software design and implement of each functional module in Wirless Token ring protocol.Finally, A trial system based on WTRP has been built, system debug and analysis of test results have been finished.