Bandwidth management in 802.11 wireless LANs

J. Sharony, M. Sen
2004 2004 IEEE International Conference on Communications (IEEE Cat. No.04CH37577)  
We developed and demonstrated a prototype 802.11b Access Point that is capable of providing committed bandwidth services to premium users and controls congestion in the wireless medium. We do so by implementing a time-varying Deficit Round Robin (DRR) scheduling algorithm that takes into account the randomly varying time intervals between RF transmissions. Premium users receive (transmit) and maintain their pre-assigned downstream (upstream) target bandwidth independently of other users in the
more » ... other users in the system, while regular users share the remainder of the bandwidth. Congestion control is achieved by identifying "marginal MUs" that are using a disproportionate amount of network resources due to poor signal quality and by selectively reducing their target bandwidth in order to maintain the desired QoS for the remaining premium users.
doi:10.1109/icc.2004.1313271 dblp:conf/icc/SharonyS04 fatcat:jgytijxfmbgfrewm2dlv2xrizm