The IEEE 802.16 standard, which is known as Worldwide Interoperability for Microwave Access (WiMAX), is one of the latest technologies in the wireless world. The main goal of WiMAX is to deliver wireless communications with guaranteed quality of service (QoS), security and mobility. Multimedia applications are bandwidth demanding and error sensitive, whereas wireless medium is unreliable and bandwidth limited. In this paper, we evaluate the performance of secure video transmission over WiMAX networks. We mainly illustrate the results of the simulations. To this end we depict the processing time and the throughput introduced when IP Security (IPSec) is applied over WiMAX. The most commonly used cryptographic algorithms and Hashed-Message Authentication Codes (HMAC), such as Advanced Encryption Standard (AES), Data Encryption Standard (DES), 3DES, Secure Hash Algorithm 1 (SHA-1) and Message Digest 5 (MD-5) are considered for this study.
展开▼
