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Wireless mesh network (WMN) technology extends the service coverage by supporting multi-hop communication and enhances the network capacity by utilizing multi-radio and multichannel. The number of multiple channels is essential for the implementation and the efficiency of channel assignment. While the number of channels is not sufficient, channel assignment needs to consider the channel sharing at...
The network performance such as node capacity in a wireless mesh network (WMN) could be limited due to inappropriate interface configuration. Mesh routers (MRs) with heavy load may suffer from interface shortage. On the other hand, a MR with less load experiences a low utilization of interfaces. In this paper, we advocate heterogeneous interface configuration to appropriately configure the MRs' interfaces...
A wireless sensor network (WSN) has to maintain a desirable sensing coverage and periodically report sensed data to the administrative center (i.e., base station) and the reporting period may range from months to years. Coverage and lifetime are two paramount problems in a WSN due to constraint of associated battery power. All previous theoretical analysis on the coverage and lifetime is primarily...
The placement of mesh routers (MRs) in building a wireless mesh network (WMN) is the first step to ensure the desired network performance. Given a network domain, the fundamental issue in placing MRs is to find the minimal configuration of MRs so as to satisfy the network coverage, connectivity, and Internet traffic demand. In this paper, the problem is addressed under a constraint network model in...
Unlike ad hoc networks where traffic is randomly distributed among every pair of nodes, the traffic in wireless mesh networks (WMNs) is predominantly toward or from the Internet Gateways (IGWs)for Internet services. Due to this, interference and collision are more serious in the Mesh Router (MRs) closer to the IGWs and the Internet throughput of the network is limited by the number of orthogonal channels...
This paper proposes a scheme for domain partition to achieve the tradeoff between load-balancing and inter-domain mobility to reduce the negative impact of the host mobility. The load-balancing scheme for domains includes: an initialization procedure to divide a mesh network into domains, and a load adjustment procedure to rebalance the traffic load of neighboring domains when required. Moreover,...
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