Centralized channel assignment and routing algorithms for multi-channel wireless mesh networks
ACM SIGMOBILE Mobile Computing and Communications Review
Self-healing multi-radio wireless mesh networks
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Optimization models and methods for planning wireless mesh networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
An overview of Channel Assignment methods for multi-radio multi-channel wireless mesh networks
Journal of Parallel and Distributed Computing
NETWORKING'07 Proceedings of the 6th international IFIP-TC6 conference on Ad Hoc and sensor networks, wireless networks, next generation internet
An introduction to PON technologies [Topics in Optical Communications]
IEEE Communications Magazine
Channel Assignment Strategies for Multiradio Wireless Mesh Networks: Issues and Solutions
IEEE Communications Magazine
IEEE Network: The Magazine of Global Internetworking
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Noting that the optical part of a hybrid wireless-optical broadband access network (WOBAN) has high capacity, we need to enhance the capacity for wireless access using a low-cost solution. Deploying multiple radios, say two, at each node will improve the performance of wireless access, but this will also increase the cost and power consumption of the solution. However, deploying multiple radios at only a few nodes, especially those that are overloaded with traffic, can lead to a less-costly and less-power-hungry solution, possibly without sacrificing performance. Hence, we propose a mixed-capacity wireless access (MCWA) architecture for WOBAN and study how to optimally place a limited number of additional radios at the wireless nodes to save the overall network cost. We formulate this problem as a Mixed Integer Linear Program (MILP) and solve it using a standard solver such as CPLEX. An efficient channel and radio assignment scheme is essential to utilize MCWA by reducing interference and contention in the wireless front-end of WOBAN. We propose an intelligent channel and radio assignment (ICRA) for MCWA in WOBAN that performs load balancing over different channels to reduce interference and contention. We formulate this problem as another MILP and solve it using CPLEX. Our findings show that, by using a mixed-capacity wireless access design with intelligent channel and radio assignment, we can obtain almost the same performance as a WOBAN with multi-radios at all nodes.