Various Security issues in wireless and Adhoc networks

As we know that the present day environment is the mobile environment and the people use the mobile devices very frequently people aware about the both type of networks that are wireless and the adhoc networks. These are the two networks that we used very frequently. Basically the difference between the two networks is that in the wireless network we work under fixed infrastructure and in the adhoc network no any type of fixed infrastructure is required. So as we see the differences between these networks the security issues in these type of networks are different and we basically study these issues in this paper.