An experimental study on the capture effect in 802.11a networks
Proceedings of the second ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
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Recent experimental results have shown that the minimum signal-to-interference ratio required at a receiver (CPth) depends on the order of arrivals of overlapping frames, and it is much less when the sender's frame arrives earlier. With such differentiating capture capable receivers, in this paper we reconsider the optimal choice for carrier sense range rs of wireless nodes. Through simple analysis and simulations we show that rs need not be more than (CPth) 1/α rt, where α is the wireless path loss factor and rt is the nodal communication range.