The Research And Implementation Of The Radio Channel Resources Allocation In Ad Hoc Network

Wireless Ad Hoc network is such a wireless network that has no central node, and can be organized quickly with self-healing function. It is usually used in such scenarios as military communications, rescue and disaster relief. Medium Access Control is one of the important parts in Ad Hoc network and responsible for the access of the shared channel and allocate the channel resource. Its performance directly affects the performance of wireless Ad Hoc network, so it has always been a hot issue in the research of experts.According to the problem of the radio channel justifiable allocation, this paper make the company wireless ad hoc network project as the research background, design and implement a new distribution scheme,and improve the utilization of the channel to meet the actual needs of the project. This paper designed the scheme of channel resource allocation is based on the principle of time-multiplexed designs, and mainly includes three aspects:(1) collection and updating the topology information. Topology information is completed channel statically allocated resources prerequisite. Based on the principle of distance-vector routing protocol design, each node only with neighboring nodes interact node basic information and topological information, eventually spread to the whole network and by setting the timer update the topology information in real time. (2) Allocating radio channel resource. The Allocation is divided into static and dynamic adjustment of two parts, statically allocated mainly based on the node topology information collection takes time for each node equal distribution channel, dynamic adjustment is based on statically assigned were mainly based on the node business data traffic reassign nodes to send and receive time. (3) Design and implementation of a prototype system. Based on the overall architecture and application requirements allocation scheme design system, then code, test and analyze the results.According to the ad hoc network function soundness of the radio channel allocation of resources and the company's actual project needs, this paper presents the design and distribution of a new radio channel resources, Ensuring the stability of communication at the same time, solve the existing system to some extent, the network delay is too long, the problem of low utilization of the radio channel, the company's self-organizing wireless network project has strong adaptability in practical applications and competitive.