Design And Implementation Of Alarm Function In Wlan Spectrum Analysis Module

In Wlan environment, wireless signal broadcasting is affected by the surrounding environment, led to complex attenuation in different direction. Such as microwave ovens, Bluetooth devices will interfere with the propagation of wireless signals. The project’s purpose is to identify sources of interference and interference device classification to decide send Trap based on Spectrum analysis.Because a lot of interference is a real-time, short duration, The project through from time to time to obtain data in wireless environment, and then reported to the access controller for processing obtained analysis results. This paper first describes the history of the development of the wireless LAN, followed by a brief introduction to the basic composition of the802.11protocol, wireless LAN logical structure and topology. And then the paper described the process of the managed device access and management device by SNMP protocol. Then the paper introduces the basic concepts of SNMP protocol and TRAP function, and introduces access point and access controller between the LWAPP protocol.This project based on802.11protocol uses Scrum development, requirements analysis, preliminary design, detailed design, coding, and testing stages of continuous iteration step-by-step way to complete the development of the TRAP alarm in WLAN Spectrum Analysis project. This paper describes the spectrum analysis is an important role in the radio resource management, focusing on the needs of the channel quality of treatment and TRAP alarm, preliminary design, detailed design, coding and testing work, including the reporting process of the SNMP protocol, access points and access controller in communication protocol. Carried out a detailed needs analysis, and demand-driven and successfully completed the functional design, implement and test.