Zigzag decoding: combating hidden terminals in wireless networks
Proceedings of the ACM SIGCOMM 2008 conference on Data communication
Taking the sting out of carrier sense: interference cancellation for wireless LANs
Proceedings of the 14th ACM international conference on Mobile computing and networking
Minimizing broadcast latency and redundancy in ad hoc networks
IEEE/ACM Transactions on Networking (TON)
Localized minimum-latency broadcasting in multi-radio multi-rate wireless mesh networks
WOWMOM '08 Proceedings of the 2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks
Interference cancellation for cellular systems: a contemporary overview
IEEE Wireless Communications
Low-Latency Broadcast in Multirate Wireless Mesh Networks
IEEE Journal on Selected Areas in Communications
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The broadcast nature of wireless transmissions is a twoedged sword for wireless broadcasting. On one hand, it makes broadcasting much more efficient; on the other hand, it causes concurrent transmissions much more likely to collide, deteriorating throughput and delay. In this paper, we propose a novel PHY layer technique called onion decoding, which enables correct decoding of two or more colliding transmissions. Thus, more concurrent transmissions can be scheduled, leading to improved throughput and delay. As we shall see in the paper, achieving optimal broadcast throughput and delay, with and without onion decoding, are non-trivial in multi-rate wireless networks. No efficient algorithm is known. We propose a simple heuristic algorithm for wireless broadcasting using onion decoding, and evaluate its performance through simulations. Simulation results confirm that onion decoding can significantly improve throughput and delay of wireless broadcasting.