The macroscopic behavior of the TCP congestion avoidance algorithm
ACM SIGCOMM Computer Communication Review
ISPAN '00 Proceedings of the 2000 International Symposium on Parallel Architectures, Algorithms and Networks
Proceedings of the 5th ACM international symposium on Mobile ad hoc networking and computing
Proceedings of the 10th annual international conference on Mobile computing and networking
Starvation mitigation through multi-channel coordination in CSMA multi-hop wireless networks
Proceedings of the 7th ACM international symposium on Mobile ad hoc networking and computing
Cross-Layer Exploitation of MAC Layer Diversity in Wireless Networks
ICNP '06 Proceedings of the Proceedings of the 2006 IEEE International Conference on Network Protocols
Collision-free asynchronous multi-channel access in ad hoc networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Multi-channel MAC protocols with two transceivers pursuing effective use of vacant resources
CCNC'10 Proceedings of the 7th IEEE conference on Consumer communications and networking conference
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In multi-channel wireless networks, multi-channel diversity can increase the number of concurrent transmissions and thus improve the throughput performance as data transmission on a wireless channel does not interfere with transmissions on the other non-overlapping channels. However, multi-channel coordination may cause severe performance degradation due to hidden terminals, missing receivers, or broadcast deafness problems if the channel usage information is not properly shared among the neighboring nodes. In this paper, we devise a semi-synchronous multi-channel coordination protocol that enables wireless nodes to: (i) efficiently exchange channel and coordination information, and (ii) reduce the overhead of channel switchings. In the proposed protocol, a rendezvous interval is set up in a distributed manner depending on the traffic rate and pattern, and each node independently switches its channel when it can complete its transmissions and then returns to the control channel within the rendezvous interval. This approach makes all nodes return to the control channel at almost the same time without incurring a severe synchronization overhead. Through subsequent analyses and simulation studies, we show that the proposed protocol effectively reduces the number of channel switchings, thereby achieving higher throughput in various multi-channel networking environments.