Enhanced Sniffers for Channel Allocation and Routing in Multi-Channel Wireless Mesh Networks

A tight integration of advanced wireless technologies can achieves highreliability and security through the high-quality monitoring of the underlying wireless communications. Passive monitoring is a widely- used and effective technique to monitor wireless networks. In this, a set of sniffers (i.e., software or hardware devices that intercept and log packets) are used to capture and analyze network traffic between other nodes, in order to estimate network conditions and performance. Such estimates are utilized for efficient network operation, such as network resource management, network configuration, fault detection diagnosis and network intrusion detection. On the other hand, utilizing multiple channels in wireless networks brings up a challenging issue with passive monitoring how to assign a set of channels to sniffers radios in order to accomplish the given monitoring objective (e.g., capturing as large an amount of traffic or covering as large a number of nodes, as possible). In this, developed a distributed online algorithm for the optimal sniffer-channel assignment for passive monitoring in multi-channel wirelessnetworks.