Proceedings of the 9th annual international conference on Mobile computing and networking
A high-throughput path metric for multi-hop wireless routing
Proceedings of the 9th annual international conference on Mobile computing and networking
Proceedings of the 10th annual international conference on Mobile computing and networking
Interference-aware topology control and QoS routing in multi-channel wireless mesh networks
Proceedings of the 6th ACM international symposium on Mobile ad hoc networking and computing
Proceedings of the 11th annual international conference on Mobile computing and networking
Capacity of multi-channel wireless networks with random (c, f) assignment
Proceedings of the 8th ACM international symposium on Mobile ad hoc networking and computing
QuRiNet: a wide-area wireless mesh testbed for research and experimental evaluations
COMSNETS'10 Proceedings of the 2nd international conference on COMmunication systems and NETworks
Channel Assignment Strategies for Multiradio Wireless Mesh Networks: Issues and Solutions
IEEE Communications Magazine
IEEE Journal on Selected Areas in Communications
QuRiNet: a wide-area wireless mesh testbed for research and experimental evaluations
COMSNETS'10 Proceedings of the 2nd international conference on COMmunication systems and NETworks
QuRiNet: a wireless testbed for network and ecological research
Proceedings of the 2010 ACM workshop on Wireless of the students, by the students, for the students
A novel channel assignment scheme for multi-radio multi-channel wireless mesh networks
WASA'11 Proceedings of the 6th international conference on Wireless algorithms, systems, and applications
Efficient link-heterogeneous multicast for wireless mesh networks
Wireless Networks
International Journal of Ad Hoc and Ubiquitous Computing
| Hi-index | 0.00 |
Multi-radio nodes in wireless mesh networks introduce extra complexity in utilizing channel resources. Depending on the configuration of the radios, bad mappings between radio to wireless frequencies may result in sub-optimal network topologies. Static channel assignments in wireless mesh networks have been studied in theory and through simulation but very little work has been done through experiments. This paper focuses on evaluating static channel assignments on a live wireless mesh network. We chose three popular types of static channel assignment algorithms for implementation and comparison purposes. The three types are breadth-first search, priority-based selection and integer linear programming. We find that there is no single channel assignment algorithm that does well overall. BFS algorithm can create the shortest paths to the gateway and also generate balanced channel usage topologies. The PBS algorithm can use all the best links in the network but have poor performance from each radio to the gateway. Overall, we find the channel assignments given by the algorithms to be suboptimal when applied to a live mesh network because temporal variations in the link quality metrics are not taken into account. Looking at the interflow and intraflow performance of these channel assignment algorithms in a live mesh network, we can conclude that routing protocols must be modified to take advantage of the underlying channel assignment algorithms.