Multicast operation of the ad-hoc on-demand distance vector routing protocol
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
Adaptive demand-driven multicast routing in multi-hop wireless ad hoc networks
MobiHoc '01 Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing
On-demand multicast routing protocol in multihop wireless mobile networks
Mobile Networks and Applications
Minimum weight routing based on a common link control radio for cognitive wireless ad hoc networks
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
E-ODMRP: Enhanced ODMRP with motion adaptive refresh
Journal of Parallel and Distributed Computing
A path-centric channel assignment framework for cognitive radio wireless networks
Mobile Networks and Applications
Vehicular networks and the future of the mobile internet
Computer Networks: The International Journal of Computer and Telecommunications Networking
Channel sensing strategy for channel load estimation
Proceedings of the 14th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
CoRoute: a new cognitive anypath vehicular routing protocol
Wireless Communications & Mobile Computing
QoS multicast routing in cognitive radio ad hoc networks
International Journal of Communication Systems
Secure Minimum-Energy Multicast Tree Based on Trust Mechanism for Cognitive Radio Networks
Wireless Personal Communications: An International Journal
Cognitive radios and the vehicular cloud
Proceedings of the 1st ACM workshop on Cognitive radio architectures for broadband
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Many multicast protocols have been proposed for ad hoc networks. ODMRP is one of the most popular protocols due to its robustness in highly mobile wireless networks. However, ODMRP is unscalable in terms of the number of sources. We improve the scalability of ODMRP using cognitive radio technology, which diversifies channel usage for multicast members with multiple cognitive channels. We design a channel allocation and distribution scheme to build a multicast tree for each group. In addition, we implement cooperative sensing by multicast members using Join Query and Join Reply messages. In simulation experiments, our protocol, CoCast, demonstrates a superior delivery ratio and throughput performance to conventional ODMRP.