Enhancement of Security for Initial Network Entry of SS: In IEEE 802.16e

Security is the main concern in these days and everyone want to secure his communication. IEEE 802.16e is a new broadband technology that is used to provide secure wireless access to thousands of users in a city at high data rate. This research paper examines the security for initial network entry of mobile stations and subscriber stations for IEEE 802.16e network. Some threats like denial of service (DoS) attacks were most common in the IEEE 802.16e network, the reason is; it is a new standard and need some security measurements. DoS attacks occur when the SS wants to communicate with base station (BS) and range request message (RNG_REQ) has been sent to BS. BS responds with range response (RNG_RSP) message to SS. Here occurs the DoS attack and this attack denied all communications between BS and SS. In this research paper we have discussed some security countermeasures that control the DoS attacks that occurred at the time of initial network entry of SS.