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All Internet routers contain buffers to hold packets during the time of congestion. Buffers are used to reduce the packet loss and to ensure high link efficiency. The widely used general rule-of-thumb is to have buffers size as the Bandwidth-Delay Product (BDP) of the network. The use of the fixed size buffers in 802.11 based wireless networks results in either undesirable channel under-utilization or unnecessary high delays. The authors propose dynamic buffer sizing algorithms to overcome the drawbacks of the fixed size buffers. Experimental results demonstrate that the utility of the proposed algorithms work better compared to the general rule of thumb.
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