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Journal of Information Science and Engineering, Vol. 20 No. 3, pp. 535-551 (May 2004)

MZRP: An Extension of the Zone Routing Protocol
for Multicasting in MANETs

Xiaofeng Zhang and Lillykutty Jacob
Center for Internet Research School of Computing
National University of Singapore
3 Science Drive 2, Singapore 117543
E-mail: {zhangxi4, jacobl}

In recent years, a variety of unicast and multicast routing protocols for Mobile Ad hoc wireless NETworks (MANETs) have been developed. The Zone Routing Protocol (ZRP) is a hybrid unicast protocol that proactively maintains routing information for a local neighborhood (routing zone), while reactively acquiring routes to destinations beyond the routing zone. In this paper, we extend ZRP for application to multicast routing and call it the Multicast Zone Routing Protocol (MZRP). MZRP is a shared tree multicast routing protocol that proactively maintains the multicast tree membership for nodes local routing zones at each node while establishing multicast trees on-demand. It is scalable to a large number of multicast senders and groups. IP tunnel mechanism is used to improve the data packet delivery ratio during transmission. Detailed simulations were performed on the NS-2 simulator. Its performance was also compared with that of ODMRP.

Keywords: MANETs, multicasting, zone routing, performance evaluation, wireless networks

Full Text () Retrieve PDF document (200405_07.pdf)

Received October 15, 2003; accepted November 15, 2003.
Communicated by Yu-Chee Tseng, Ten-Hwang Lai, P. Sadayappan and Yi-Bing Lin.