Capacity of Ad Hoc wireless networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Alleviating Self-Interference in MANETs
LCN '04 Proceedings of the 29th Annual IEEE International Conference on Local Computer Networks
A coordinate-based approach for exploiting temporal-spatial diversity in wireless mesh networks
Proceedings of the 12th annual international conference on Mobile computing and networking
Distributed Flow Control and Medium Access in Multihop Ad Hoc Networks
IEEE Transactions on Mobile Computing
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In CSMA-based wireless multi-hop networks, consecutive packets on a single multi-hop path interfere with each other, causing hidden/exposed terminal problems and frequent contention. This phenomenon is called intra-flow interference and is considered as one of the principal factors degrading the throughput performance, since it increases the number of collisions as well as backoff intervals. Here, we propose a probabilistic packet dropping algorithm that mitigates the intra-flow interference on wireless multi-hop networks. In the proposed algorithm, a wireless node classifies all flows into several 1-hop forwarding domains, which are determined by the next relay node. For this classification, each node regards the flows that will pass the same 1-hop neighbor as ones belonging to the same forwarding domain. Each node probabilistically drops incoming packets if the inter-arrival time of incoming packets belonging to the same forwarding domain is so short as to make intra-flow interference. Through extensive simulation studies, we show that the proposed algorithm effectively reduce the intra-flow interference, and increases the overall throughput as well as fairness on wireless multi-hop networks.