Wireless technology has become valuable because of its infrastructure less working. The term wireless deals with the communication or transmission of information over a distance without any physical source i.e. cables or any other electrical conductors. This transmission is performed by using electromagnetic waves like radio frequencies, infrared, satellite, etc. But this technology has some drawbacks or challenges which are Signal fading, mobility, data rate enhancements, minimizing size and cost, and user security and. In this paper we will study both of these research issues as well as challenges.

Keywords : Exponential LAN, peer-to-peer, mobility.