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Performance Evaluation of Multi-Channel Wireless Mesh Networks with Embedded Systems

Author(s): Jun Huy Lam | Sang-Gon Lee | Whye Kit Tan

Journal: Sensors
ISSN 1424-8220

Volume: 12;
Issue: 1;
Start page: 500;
Date: 2012;
Original page

Keywords: FreeBSD | NanoBSD | multi-channel | wireless mesh network | embedded system | PCEngines alix | 802.11s | static routing | dynamic routing

Many commercial wireless mesh network (WMN) products are available in the marketplace with their own proprietary standards, but interoperability among the different vendors is not possible. Open source communities have their own WMN implementation in accordance with the IEEE 802.11s draft standard, Linux open80211s project and FreeBSD WMN implementation. While some studies have focused on the test bed of WMNs based on the open80211s project, none are based on the FreeBSD. In this paper, we built an embedded system using the FreeBSD WMN implementation that utilizes two channels and evaluated its performance. This implementation allows the legacy system to connect to the WMN independent of the type of platform and distributes the load between the two non-overlapping channels. One channel is used for the backhaul connection and the other one is used to connect to the stations to wireless mesh network. By using the power efficient 802.11 technology, this device can also be used as a gateway for the wireless sensor network (WSN).
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