Evaluating the Performance of IPTV over Fixed WiMAX
This work addresses performance optimization for IPTV over WiMAX networks, but it is incremental as it applies existing simulation methods to a specific domain.
The paper studied the performance of Internet Protocol Television (IPTV) over Fixed WiMAX by simulating different modulation techniques, finding that higher-order schemes like 16 QAM and 64 QAM improved performance compared to QPSK in terms of packet loss, delay, and throughput.
IEEE specifies different modulation techniques for WiMAX; namely, BPSK, QPSK, 16 QAM and 64 QAM. This paper studies the performance of Internet Protocol Television (IPTV) over Fixed WiMAX system considering different combinations of digital modulation. The performance is studied taking into account a number of key system parameters which include the variation in the video coding, path-loss, scheduling service classes different rated codes in FEC channel coding. The performance study was conducted using OPNET simulation. The performance is studied in terms of packet lost, packet jitter delay, end-to-end delay, and network throughput. Simulation results show that higher order modulation and coding schemes (namely, 16 QAM and 64 QAM) yield better performance than that of QPSK.