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Abstract
The Wireless Networks was invented in1970 under the supervision of Defence Advanced Research Projects Agency (DARPA) in United State of America. The first Wireless network is called as“Packet Radio Network” which was designed, built and performed by Bolt, Bernanke and Newman Technologies (BBN) and SRI International. This Packet Radio Network system anticipated the Internet and has played a measure role in motivating for the Internet Protocol suite. In1980's Survivable Radio Network (SURAN) project was successfully executed by DARPA. Packet Radio networks system did not progress much further until the wireless ad-hoc networks are innovated due to slower data rate, and it was inefficient in maintaining its links in high mobility condition and was bulky elements. Later in mid of 1990's the inexpensive802.11 radio card came for the use of personal computers. The roots of wireless technology are found in Military advancement. These days ad-hoc network are essentially produced for military utility.