The Research of MAC Protocol for Wireless Data Communication Network

Medium access control (MAC) protocol is an important component of the wireless data communication protocols.As wireless channel is an open and shared channel,there are hidden terminal and exposed terminal problems in the wireless data communication.This paper describes the common medium access control (MAC) protocols used in current wireless data communication network,points out its drawbacks,and at the same time,analyzes carefully the MAC protocol based-on spread spectrum code.Not only can it solve the problem of channels collision,but also it enhances the system efficiency.At last,it points out that appropriate MAC protocol should be selected for a wireless data communication network according to its topology and characteristics.