鎽� 瑕侊細鐩墠鐒＄窔灞€鍩熺恫(w菐ng)锛圵ireless LAN锛夋鍦ㄤ綔鐐哄煄甯傝粚閬撲氦閫氳粖杓夌洠(ji膩n)鎺х郴绲�(t菕ng)銆佷箻瀹俊鎭郴绲�(t菕ng)鐨勮粖鍦伴枔閫氫俊绯荤当(t菕ng)鍔犱互鐮旂┒锛岀偤浣跨劇绶氬眬鍩熺恫(w菐ng)鎻愪緵鐨勫悶鍚愰噺銆佽纰肩巼銆佸偝杓告檪寤�銆佹姉骞叉摼鑳藉姏婊胯冻杌婂湴閫氫俊瑕佹眰锛屾湰鏂囨ā鎿洐绉诲嫊绔欏拰澶氱Щ鍕曠珯涓嶅悓鐨勮粚閬撲氦閫氶€氫俊鐠�(hu谩n)澧�锛屽垎鏋愬拰瑷庤珫鐒＄窔灞€鍩熺恫(w菐ng)鐨勬€ц兘銆傞€氶亷灏峂AC灞ゅ弮鏁�(sh霉)閫茶鍎�(y艒u)鍖栵紝鏈夋晥鐨勬笡灏戜簡鍌宠几涓殑浠嬭唱(zh矛)瑷晱鏅傚欢鍜屾矕绐�锛屾彁楂樹簡缍�(w菐ng)绲�(lu貌)鐨勫悶鍚愰噺銆� 闂�(gu膩n)閸靛瓧锛�鐒＄窔灞€鍩熺恫(w菐ng);浠嬭唱(zh矛)瑷晱鏅傚欢;802.11 [b][align=center]WLAN Performance Analysis and Optimization in Metro Line Communication Cai wei-hao, Zheng guo-xin, He hui, Zhou xiang-wei[/align][/b] Abstract: At present, WLAN is being researched as the train-ground communication system for metro line onboard surveillance system銆乸assenger information system. To meet the demand of train-ground communication for throughput銆丅ER銆乼ransmission delay銆乤nti-jamming ability provided by WLAN, we simulate different metro line communication environments of two mobile stations and multi mobile station, analyze and discuss WLAN performance. By optimizing the MAC layer parameters, we effectively reduce the media access delay and collision, thus improving the network throughput. 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Differentiation mechanisms for IEEE 802.11[J]. In: Proc. of the 20th Annual Joint Conf of the IEEE Computer and Communications Societies, 2001. 209-218 銆€銆€2 Ozugur T, Naghshineh M, Kermani P, Copeland JA. Fair media access for wireless LANs[J]. In: Proc. of the IEEE Global Telecommunications Conf. GLOBECOM. Rio de Janeiro: IEEE, 1999. 570-579. 銆€銆€3 鏉庡锛屾潕鐝�锛岄櫝缇�锛屾娲敓. 鐒＄窔灞€鍩熺恫(w菐ng)MAC鍗�(xi茅)璀扮爺绌跺強瀵︽檪妤�(y猫)鍕�(w霉)QoS瀵︾従(xi脿n)[J]. 寰▓绠楁淇℃伅锛�2006锛�2-3锛�155-157 銆€銆€4 鑸掑畨娼�锛屾潕闁嬫垚. CBTC绯荤当(t菕ng)淇℃伅瀹夊叏鍌宠几?sh霉)闅捐姱绺朖]. 寰▓绠楁淇℃伅锛�2006锛�3-1锛�44-46 銆€銆€5 鐜嬫枃鍗氾紝寮甸噾鏂�.OPNET Modeler鑸囩恫(w菐ng)绲�(lu貌)浠跨湡[M].鍖椾含锛氫汉姘戦兊闆诲嚭鐗堢ぞ锛�2003.25-97