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Proceedings of the 10th annual international conference on Mobile computing and networking
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OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
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Proceedings of the 11th annual international conference on Mobile computing and networking
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MSWiM '05 Proceedings of the 8th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems
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Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
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Proceedings of the 12th annual international conference on Mobile computing and networking
Practical synchronization techniques for multi-channel MAC
Proceedings of the 12th annual international conference on Mobile computing and networking
Y-MAC: An Energy-Efficient Multi-channel MAC Protocol for Dense Wireless Sensor Networks
IPSN '08 Proceedings of the 7th international conference on Information processing in sensor networks
A Practical Multi-channel Media Access Control Protocol for Wireless Sensor Networks
IPSN '08 Proceedings of the 7th international conference on Information processing in sensor networks
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WSEAS TRANSACTIONS on SYSTEMS
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Multi-channel MAC protocols have recently obtained considerable attention in wireless networking research because they promise to increase capacity of wireless networks significantly by exploiting multiple frequency bands. However, most of these protocols remain as pure academic interest since they only exist on paper and in simulation code but have no practical implementation. In this paper, we report lessons learned from our endeavor in which we implement three representative multi-channel MAC protocols: Asynchronous Multi-channel Coordination Protocol (AMCP), Multi-channel MAC (MMAC), and Slotted Seeded Channel Hopping (SSCH) on off-the-shelf IEEE 802.11 hardware. We explore practical impacts of these multi-channel MAC protocols and present results of our experimental performance evaluation. The major findings of our performance evaluation are: (1) all multi-channel MAC protocols underperform the original 802.11 MAC at low load, (2) all multi-channel MAC protocols give better performance than the original 802.11 MAC at medium and high load, (3) AMCP performs worst among all multi-channel MACs in one-hop and multi-hop 802.11b scenario but delivers the best performance in multi-hop 802.11a scenario, and (4) SSCH attains the best results in one-hop scenarios or at low loads but loses its effectiveness at high loads in multi-hop scenarios.