Calculation of WLAN Outdoor Coverage Path Loss and System Deployment Suggestion
Wenbin Li · Telecommunication Engineering · 2011
The technical features and frequency characteristics of IEEE802.11x protocol in Wireless Local Area Network(WLAN) are introduced.The radio path loss is calculated by using COST231 HATA correction transmission model.The space channel fading characteristics of 2.4GHz frequency in WLAN are shown in graphics.By calculation,following results are obtained: along with the increase of transmission distance and the difference of antenna height between AP(Access Point) and STA(Station).The WLAN radio path loss will exceed the tolerable maximum path loss of WLAN system rapidly,the WLAN coverage scope will be limited.The WLAN outdoor coverage will be improved when the WLAN BTS/AP is deployed based on the path loss.Finally,a valuable WLAN outdoor coverage deployment suggestion is given that WLAN outdoor coverage will be improved by deploying multilayer AP layout and keeping the balance of uplink path and downlink path.