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COMB: An NS-2 tool for studying the coexistence of dissimilar and competing wireless networks

The problem of coexistence among wireless networks, especially dissimilar ones competing for partially overlapping unlicensed bands, is becoming a hot topic. This is also confirmed by the mushrooming of mechanisms and working groups (within the International Bodies) addressing the issue. But prior to drawing any solution, an extensive theoretical analysis of the coexistence phenomena among any MAC is needed. This paper presents COMB, a tool aimed at simulating the coexistence among heterogeneous and competing wireless networks, leveraging the well-known NS-2 simulator.