Reconsideration of carrier sensing range for wireless ad hoc networks
Mayur M. Vegad, Swades K. De, Brejesh Lall · 2009
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 rsof wireless nodes. Through simple analysis and simulations we show that rsneed not be more than (CPth)1/¿rt, where ¿ is the wireless path loss factor and rtis the nodal communication range.