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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 2    
Website: http://www.ijser.org
scirp IJSER >> Volume 3,Issue 2,February 2012
Throughput Maximization In Wireless Mesh Networks And Its Applications
Full Text(PDF, )  PP.556-562  
Author(s)
T.Nirmal Raj, G.Bhuvaneswari, S.Saranya
KEYWORDS
: Wireless mesh networks, throughput, channel assignment, subnetwork, local pooling, Emerson process management and wirelessHart
ABSTRACT
Wireless mesh networks (WMNs) consist of mesh routers and mesh clients, where mesh routers have minimal mobility and form the backbone of WMNs. They provide network access for both mesh and conventional clients. This paper considers the interaction between channel assignment and distributed scheduling in multi-channel, multi radio Wireless Mesh Networks (WMNs). Recently, a number of distributed scheduling algorithms for wireless networks have emerged. Due to their distributed operation, these algorithms can achieve only a fraction of the maximum possible throughput. As an alternative to increasing the throughput fraction by designing new algorithms, we present a novel approach that takes advantage of the inherent multi-radio capability of WMNs. We show that this capability can enable partitioning of the network into subnetworks in which simple distributed scheduling algorithms can achieve I00% throughput. The partitioning is based on the notion of Local Pooling. Using this notion, we characterize topologies in which I00% throughput can be achieved distributedly with algorithms, which characterized in Dijkstra and KBR (Key based routing) and also in this paper, we will discuss the applications of WMNs. Emerson process management comes under the industrial automation applications of WMNs using WirelessHart and Emerson's smart wireless extreme applications. It is a secure and TDMA-based wireless mesh networking technology operating in the 2.4 GHz ISM radio band. Wireless HART is a newly developed industrial standard network by the Hart Communication Foundation (HCF), which is being currently replacing the existing HART network in the industries. The HART communication protocol is an open standard, master-slave token passing network protocol, where devices are connected over 4-20 mA analog loop. Process monitoring improving the overall efficiency of our plant, we can reduce costs and improve throughput. 
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