This paper is well written. It presented multicast routing protocol under multichannel/interface mesh environments, which is a very important and challenge problem. The proposed protocol builds multicast paths while inviting multicast members, and allocates the same channel to each of neighboring members in a bottom up manner. It reduces message overheads and delivery delays while guaranteeing successful message deliveries. Finally, the authors implemented the proposed scheme on a real multi-channel/interface mesh network test-bed with two IEEE 802.11a cards per node to evaluate their approach. This paper should be accepted.
Several challenging issues of designing a multicast protocol more suitable for Multichannel and multi-interface were addressed. The proposed multicast protocol builds multicast paths while inviting multicast members, and allocates same channel to each of neighboring members with bottom upbased and distributed-oriented approaches. This mechanism guarantees successful message deliveries with less message overheads and delivery delays. The proposed scheme was implemented on a real multichannel mesh network testbed (Net-X), and they showed the proposed scheme performed better than previous ones without reliability degradation. Excellent contribution.
This paper made important contributions to multicast routing with multiple-channel and multiple-interfaces. Multicast traffic dominates the tactical applications. One of the key contribution is the performance evaluation over real testbed. However, the performance under topology change rate was not presented. I would like to recommend the authors to make some measurements with various topology change rate in the final paper.