Wireless Mesh Networks (WMNs) are being developed actively and deployed widely for a variety of applications, such as public safety, environment monitoring, and citywide wireless Internet services . They have also been evolving in various forms (e.g., using multiradio/channel systems to meet the increasing capacity demands by the above-mentioned and other emerging applications. However, due to heterogeneous and fluctuating wireless link conditions , preserving the required performance of such WMNs is still a challenging problem. . For example, some links of a WMN may experience significant channel interference from other coexisting wireless networks. Some parts of networks might not be able to meet increasing bandwidth demands from new mobile users and applications. The above problem in the WMNs is overcome by the proposed system i.e. autonomous network reconfiguration system (ARS) that allows a multiradio WMN(mr-WMN) to autonomously reconfigure its local network settings— channel, radio, and route assignment— for real-time recovery from link failures. This show that ARS outperforms existing failure-recovery schemes in improving channel-efficiency by more than 90% and in the ability of meeting the applications' bandwidth demands by an average of 200%.This paper presents shows that ARS decouples network reconfiguration from flow assignment and routing.This is the first step to solve optimization problem in giving best effort service to network failures is proposed. In this a threshold value is set for every node is the modification is proposed.When a node want to send packet from source to destination,it verify its threshold value,whether it reach its limit or not.When it reaches it limit,it choose another node to send data.It chooses it route with minimum path cost value and minimum delay time.With this consideration,some considerable amount of packet loss will be less when compared to the ARS system.
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