A Same Frequency Interference Avoidance Scheme Of Dense Wireless Local Area Network Based On Power And Bandwidth Allocation

As an important diversion form of cellular network, the wireless local area network evolved into an operated public wireless network. In order to meet people’s demand of the explosive wireless terminals and the emerging multimedia services, the hot spot with higher transmission rate, higher throughput and larger-scale higher-density deployment will be the development tendency of wireless local area network. The improvement on physical layer and MAC layer of 802.11 ac protocol which published in IEEE recently ameliorate the physical rate and the theory of MAC throughput of the new generation of wireless local area network. However, the high-speed-WLAN band resource shortage resulted in a serious problem of Co-Channel Interference in dense network environment.In this paper, we mainly studied the dense deployment protocol performance and the problem of Co-Channel Interference in high-speed-WLAN environment. We classify the techniques of the WLAN and the conventional anti-jamming analysis the principle of the WLAN 802.11 ac protocol and its influence on collision and interference, give the influential-factors-test scheme of WLAN performance and the net form of the same frequency avoidance in high speed WLAN, propose the same frequency avoidance scheme which based on user power and bandwidth allocation in high bandwidth AP overlapping environment and put forward the proposal for the 802.11 ac network.