Peer-Reviewed Journal Details
Mandatory Fields
Malone, D;Duffy, K;Leith, D
2007
February
IEEE/ACM Transactions on Networking
Modeling the 802.11 distributed coordination function in nonsaturated heterogeneous conditions
Published
231 ()
Optional Fields
SATURATION THROUGHPUT ANALYSIS PERFORMANCE
15
159
172
Analysis of the 802.11 CSMA/CA mechanism has received considerable attention recently. Bianchi presented an analytic model under a saturated traffic assumption. Bianchi's model is accurate, but typical network conditions are nonsaturated and heterogeneous. We present an extension of his model to a nonsaturated environment. The model's predictions, validated against simulation, accurately capture many interesting features of nonsaturated operation. For example, the model predicts that peak throughput occurs prior to saturation. Our model allows stations to have different traffic arrival rates, enabling us to address the question of fairness between competing flows. Although we use a specific arrival process, it encompasses a wide range of interesting traffic types including, in particular, VoIP.
PISCATAWAY
1063-6692
10.1109/TNET.2006.890136
Grant Details