Abstract
In this paper, a routing method for Wi-Fi mesh networks considering traffic load balancing and quality of service (QoS) is proposed. A mesh network is constructed with several static access points, and each access point connects each together with Wi-Fi technology. Wireless mesh links between access points are established by using proposed routing method which is based on the optimized link state routing (OLSR) protocol. Traffic load balancing by monitoring traffic loads on each access point is adapted to the routing method in order to avoid access points having a high traffic load in routes. Moreover, traffics are categorized as rt for real time application and nrt for non-real time application as considering QoS, and the priority of sending traffics is controlled. Computer simulations were carried for evaluating the network performance with the proposed routing considering the traffic load balancing and QoS. As the results of computer simulations, it was confirmed that the proposed routing could be realized, and it could improve the throughput and delay-time performances for Wi-Fi mesh network. The improvements of the throughput and delay-time performances were about 3.5 Mbps and 50 ms by using the proposed routing method when traffic loads of the network was one-third of transmitting rate of Wi-Fi links between access points based on IEEE 802.11g.
Published Version
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