Optimizing WiMAX Network Performance with IP Security: An Evaluation of TCP and UDP Applications

This paper evaluates the performance of Internet Protocol Security (IPSec) in the TCP layer for the WiMAX network. The demand for security in data networks has been increasing owing to the high cyber attacks and potential risks associated with networks spread over distant geographical locations. IPSec provides two types of security algorithms, symmetric encryption algorithms e.g. Data Encryption Standard DES) for encryption, and one-way hash functions e.g. Message Digest MD5 and Secured Hash Algorithm SHAl) for authentication. The evaluation criteria concentrated on Voice over Internet Protocol (VoIP) and Video conferencing with a keen interest in TCP throughput, latency, jitter, and end-to-end delivery. This provided the study with precise responses. The observation method was used in data simulations using OPNET Version 14.5 Simulation software.