Abstract-We focus on a popular message dissemination protocol for wireless ad-hoc networks, GOSSIP3. Our contribution is twofold. First, we perform an extensive experimental evaluation of GOSSIP3 under fully utilized wireless channel and across diverse node densities. We identify the parameters of GOSSIP3 that need special configuration for the protocol to operate optimally. Second, we devise a self-configuration algorithm for GOSSIP3 that allows the protocol to work optimally for any network. We demonstrate through simulations that our protocol significantly outperforms the default configuration of GOSSIP3.

We discuss protocols for all-to-all dissemination in ad-hoc wireless networks. We identify shortcomings and challenges related to high traffic and explore their causes by observing the performance at the MAC layer. Through simulations we show that a congestion assessment mechanism can reduce up to 1/3 of the traffic on a good part of the nodes without affecting dissemination performance. We conclude that MAC-layer congestion awareness is important for improving application-level efficiency, and that we should not separate the two when dealing with all-to-all broadcasting.

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