Research And Application Of WLAN Network Architecture Optimization Mode

In recent years,with the development of various business competition among telecom operators,the competition between operators for users is becoming increasingly fierce.As a business example,wireless local area network(WLAN)has been recognized by more and more users for its free and fast characteristics,which is crucial for operators to develop user resources.But in the actual scenario,a single WLAN coverage mode can not guarantee that users at all points in the coverage can enjoy high-quality network.In different scenarios,how to deploy a better WLAN is a problem for all operators to cope with.Therefore,this thesis carries out the research and application of WLAN network architecture optimization mode,aiming to build the actual scene on the basis of the existing theory,and study the most reasonable WLAN network scheme in the actual scene by using various differentiated construction means.The main tasks of this thesis is as follows:1.In view of the problems related to WLAN network planning,the second chapter compares several WLAN standards commonly used at this stage,and highlights their respective characteristics,so as to make standard selection in actual networking.Through the comparison of2.4 GHz and 5.8 GHz transmission bands,the advantages of introducing 5.8 GHz band into the networking are analyzed,which provides the basis for supporting the mixing networking in the actual scene.2.In order to improve the performance and reliability of wireless LAN,the third chapter proposes a networking scheme in 802.11 n mixed mode.With the help of multiple in and multiple out technology,multiple antennas are used to transmit and receive simultaneously to form multiple spatial streams and transmit data packets in parallel to improve the data transmission rate;By selecting the recommended parameters of 802.11 n network,such as edge coverage field strength,equipment capacity and other performance indicators,the indoor distribution performance is optimized to prepare for the construction of large-scale network;By constructing the relationship between bandwidth selection and frequency planning,the working mode of space flow(single space flow and double space flow)in different frequency bands is selected to build the foundation for improving the system throughput.3.Aimed at the problem of WLAN network optimization mode construction in the actual scene,the fourth chapter takes the deployment of WLAN in a university as an example,and designs the optimization mode of WLAN network by comprehensively using three network deployment schemes: WLAN macro cellular antenna,dual band hybrid network and blind area signal directional introduction.Meanwhile,this optimization mode of WLAN network realizes the optimized coverage mode under different scenarios such as high user density,high number of concurrent users,high continuous traffic,large coverage,blocking area in the coverage environment,etc.,to solve the problems of intra network interference,weak coverage and insufficient user capacity that have plagued us for a long time.