Adhoc wireless network encompass mobile devices that uses wireless transmission for communication. They can be setup anywhere and anytime as and when required. They do not have infrastructural setup and central administrative support. Cross Layer Design In Adhoc Networks: A Security Aspect is meant for the students pursuing research in Adhoc network. It deals with the intricacies of cross layer designs and provides a glimpse of security aspects. It is a simple book that can be utilized by even the students of engineering having Adhoc network as a subject.