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Distributed antenna systems(DASs) using Radio-over-fiber(Ro F) links is a promising candidate to provide flexible coverage and high data rates. For simulcast Wireless local-area network(WLAN) use in Ro F systems, the stations covered by different Remote antenna units(RAUs) contend for the wireless medium using Media access control(MAC) mechanism. Severe inter-RAU hidden nodes problem will happen due to the stations in different RAUs cannot detect each other very well. In order to alleviate this inter-RAU collision problem, a promising detection-switching-assisted Distributed coordination function(DCF) mechanism is presented using in the uplink. The control delay issues of the proposed mechanism are also discussed in this paper.
For simulcast Wireless local-area network (WLAN) use in Ro F systems, the stations covered by by different Remote antenna units (RAUs) contend for the wireless medium using Media Access Control (MAC) mechanism. Severe inter-RAU hidden nodes problem will happen due to the stations in different RAUs can not detect each other very well. In order to alleviate this inter -RAU collision problem, a promising detection-switching-assisted Distributed coordination function (DCF) mechanism is presented using in the uplink. The control delay issues of the proposed mechanism are also discussed in this paper.