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In the tactical network scenario mobile nodes are require to attain high degree of mobility without the aid of prior network infrastructure. To access the efficient and reliable communication it must be based on tactic scenario like specified area, task specified unit etc. in real time. The performance of this system in real time is very difficult to do because of it need field test, several hundred devices as well manpower. The evaluation of algorithm and protocol simulation is another alternative to evaluate the performance of tactical network. The simulative performance evaluation relies on models used in the network. This paper basically provides survey and categorization of the mobility model on account of mobility metrics, as well as analysis of those models which meet the tactical scenario requirement tabulated in table 2.

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Due to suppression of central administration in WMN, network functioning like network controls, management, routing, switching, packet forwarding etc. are distributed among nodes, either collectively or individually. So, cooperation among nodes is highly solicited. However, there may exist node's malicious activities because of its open characteristics and limited available battery power. The nodes may misbehave by refusing to provide service or dropping down the packets because of its selfishness and malicious activity. The identification of misbehaving nodes and prevention from them can be one of the biggest challenges. Hence, the prime target of the chapter is to provide an overview of existing intrusion detection and prevention approaches, and secure routing or framework that can recognize and prevent from the malicious activities. The digital signature-based IDS to offer secure acknowledgment and an authentication mechanism has also been discussed. The expectation is the digital signature-based IDS will overcome the weakness of existing IDS.

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