Capacity of Ad Hoc wireless networks
Proceedings of the 7th annual international conference on Mobile computing and networking
Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Acyclic and k-distance coloring of the grid
Information Processing Letters
Ad Hoc Wireless Networks: Architectures and Protocols
Ad Hoc Wireless Networks: Architectures and Protocols
Wireless sensor networks
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Proceedings of the 11th annual international conference on Mobile computing and networking
Comparison of Multichannel MAC Protocols
IEEE Transactions on Mobile Computing
An overview of the OMNeT++ simulation environment
Proceedings of the 1st international conference on Simulation tools and techniques for communications, networks and systems & workshops
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Journal of Systems and Software
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IPDPS'06 Proceedings of the 20th international conference on Parallel and distributed processing
LCN '10 Proceedings of the 2010 IEEE 35th Conference on Local Computer Networks
Channel assignment schemes for infrastructure-based 802.11 WLANs: A survey
IEEE Communications Surveys & Tutorials
The capacity of wireless networks
IEEE Transactions on Information Theory
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To improve the capacity of multi-hop wireless networks, protocols based on spatial reuse of frequencies with multiple orthogonal channels have been studied earlier. This paper focuses on the design, implementation and analysis of multiple-channel based wireless sensor networks (WSN). The objectives of the paper are two-fold. The first objective is to identify the sensor node bottlenecks in implementing multi-channel MAC protocols. In particular, a control channel based MAC protocol is implemented and analyzed. The analysis shows the gap between reality and simulation models due to system overheads in implementing these protocols. The second objective is to understand the capacity limits of multi-hop paths in a WSN with multiple channels. A generic channel allocation scheme based on k-distance coloring technique is developed. The protocols and mechanisms were implemented on a testbed consisting of Crossbow MicaZ and TelosB motes using IEEE 802.15.4 compliant radios. Throughput and delivery ratio measurements from the testbed are reported. Some of these measurements are incorporated in a discrete-event simulator model, based on OMNET++ 4.0 with Mobility Framework, for more detailed throughput analysis. The results show that it is possible to achieve 90 % delivery ratio over paths consisting of as many as 18 hops, in a 10 脳 10 grid topology using 16 channels.