Title :
COCAST: Multicast mobile ad hoc networks using cognitive radio
Author :
Kim, Wooseong ; Oh, Soon Y. ; Gerla, Mario ; Park, Joon-Sang
Author_Institution :
Comput. Sci. Dept., Univ. of California, Los Angeles, CA, USA
Abstract :
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.
Keywords :
ad hoc networks; channel allocation; cognitive radio; mobile radio; multicast protocols; routing protocols; COCAST; ODMRP; channel allocation; channel distribution; channel usage; cognitive radio; multicast mobile ad hoc networks; multiple cognitive channels; on-demand multicast routing protocol; Ad hoc networks; Channel allocation; Cognitive radio; Mobile ad hoc networks; Multicast protocols; Robustness; Scalability; Throughput; Wireless application protocol; Wireless networks;
Conference_Titel :
Military Communications Conference, 2009. MILCOM 2009. IEEE
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-5238-5
Electronic_ISBN :
978-1-4244-5239-2
DOI :
10.1109/MILCOM.2009.5379883
