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Wireless mesh networks (WMNs) are new type of networks in which every node can communicates to all neighboring nodes to enhance network reliability and performance. Network traffic cost optimization and its security in wireless mesh network is a challenging task. The concept of field based routing (FBR) is gaining popularity because it uses a little information to route the packets. These routing algorithms are robust, inexpensive and scalable. Authors believe that the FBR is the better choice for the multimedia communication in wireless mesh networks. Because FBR exchanges little information for building and maintenance of the routing tables. Regardless of robustness and scalability of the FBR it is also prone to different active and passive attacks. In this paper we first study that how multimedia communication can be done using FBR (optimization) and then take some security measures to eliminate the risk of intruder intervention in such communication. Multimedia FBR and its security has been extensively studied using Omnet++ network simulator to identify and isolate the malicious node and to prevent the traffic flows from various active and passive attacks.

On Optimization and Security of Multimedia Communication in Wireless Mesh Networks