Novel Differentiated Queues Based DCF Mechanism
Bing Chen, Junjun Tan · Journal of Chinese Computer Systems · 2011
Under the infrastructure operation of IEEE 802.11b standard,the contention-based channel access of DCF enforces unfairness between downlink and uplink,thus restricts the number of VoIP connections.A proposed scheme insured the voice traffic to be transported in time by using two queues with different priorities in AP.The payload of AP and STA will be balanced by configuring of service parameters.Simulating results using NS2 facility shows that the capacity of voice call is increased under the premise of assuring the perfect voice quality.