Abstract
Wireless Mesh Network (WMN) [1] deployment based on IEEE 802.11s [2] standard is a popular choice in setting up cost-efficient alternative to support broadband internet services to a larger population. They can provide network connectivity over large geography when compared to WLANs. WMN makes use of Distributed Coordination Function (DCF) Medium Access Control (MAC) protocol with Binary Exponential Backoff (BEB) algorithm to avoid collision due to simultaneous transmissions by more than one user at the same time. These collisions bring the network performance drastically down if not handled properly. Thus this work tries to evaluate the suitability of the better efficient CA algorithms (EIED, EILD, MILD, PB, CCW, EBO, HBA…) which can replace BEB to support higher throughput for IEEE 802.11s networks (WMNs). The NS-3 [3] simulation results indicate that Polynomial Backoff (PB) performs better than others against the BEB algorithm in about 52 % of network scenarios and it is suggested to operate with TWO radios enabled with all access points.
Highlights
Wireless Mesh Network (WMN) have been projected as the most preferred alternative for next-generation wireless networks with least cost last-mile connectivity
In this work we propose an analysis of backoff algorithms suitable for WMNs
Each cell value indicates Throughput with row indicating packet size and column indicating node density, & No of interfaces enabled with mesh router
Summary
WMNs have been projected as the most preferred alternative for next-generation wireless networks with least cost last-mile connectivity. WMNs essentially make use of multi-hop communication to support wireless services over a large area. The Mesh Router provides internet access to the Mesh Clients. A Mesh Router can be built out of general-purpose computing devices like, laptops, desktops, or on dedicated systems. The simplicity in adding the new routers make WMNs as the preferred technology for applications viz., Advanced Metering Infrastructure (AMI), intrusion detection systems, remote video surveillance, smart grids, environmental monitoring. WMNs are expected to support internet services to heterogeneous clients over a large area
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