DMCA
On-Demand Channel Switching for MultiChannel Wireless MAC Protocols (2006)
| Venue: | In Proceedings of the 12th European Wireless Conference |
| Citations: | 7 - 0 self |
BibTeX
@INPROCEEDINGS{Porwal06on-demandchannel,
author = {Priyank Porwal and Maria Papadopouli},
title = {On-Demand Channel Switching for MultiChannel Wireless MAC Protocols},
booktitle = {In Proceedings of the 12th European Wireless Conference},
year = {2006},
pages = {1--9}
}
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Abstract
Abstract – We propose and analyze the on-demand channel switching (ODC), a novel broadcast-based medium access control (MAC) protocol for ad-hoc wireless networks with multiple channels at each host. The ODC performs an on-demand, dynamic, channel selection based on the traffic conditions of the channels and communication pattern of each host. A host stays on a channel as long as its traffic share on that channel is above a certain threshold, below which it switches to another channel. It aims on reducing the unnecessary receives and channel switches, while still being able to send and receive legitimate traffic. This can enhance the bandwidth utilization, reduce packet delays, and increase energy savings. ODC does not require any specialized hardware. We evaluate the ODC with extensive simulations and compare it with the IEEE 802.11 and another related MAC protocol (MMAC). We found that the flow distribution among hosts has a great impact on its performance. For example, in networks in which a host communicates with only one other host at a given time, there is an up to 180 % increase in the aggregate throughput compared to the IEEE 802.11, and a 15-35 % increase compared to the MMAC. On the other hand, networks with hosts with multiple flows to different hosts simultaneously tend to favor the IEEE 802.11 over the ODC and MMAC. I.
Keyphrases
multichannel wireless mac protocol on-demand channel traffic condition traffic share great impact different host multiple flow certain threshold communication pattern on-demand channel switching extensive simulation legitimate traffic ad-hoc wireless network novel broadcast-based medium access control specialized hardware channel selection 15-35 increase flow distribution channel switch unnecessary receives energy saving aggregate throughput packet delay multiple channel bandwidth utilization related mac protocol
