Voice over IP performance monitoring
ACM SIGCOMM Computer Communication Review
Performance Evaluation of Quality of VoIP in WiMAX and UMTS
PDCAT '11 Proceedings of the 2011 12th International Conference on Parallel and Distributed Computing, Applications and Technologies
Fundamentals of WiMAX: Understanding Broadband Wireless Networking
Fundamentals of WiMAX: Understanding Broadband Wireless Networking
Mobile WiMAX MAC and PHY layer optimization for IPTV
Mathematical and Computer Modelling: An International Journal
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Recently, Wi-Fi, WiMAX and LTE networks are broadly used for various data communications. WiMAX is considered suitable as a backhaul service to connect with multiple dispersed Wi-Fi 'hotspots'. Wireless networks such as Wi-Fi and WiMAX focus on delivering Quality of Service (QoS) for audio and video communications. However, there are numerous aspects that affect the communications on the networks. In this paper, an integrated Wi-Fi/WiMAX network has been investigated by using three different audio codecs and two video codecs. A test-bed is designed to generate and evaluate performance metrics delay, jitter, packet loss and Mean Opinion Score (MOS). A softphone is used as an audio-video application. By comparing various audio video codecs and communication distances, some recommendations are made for choosing an appropriate codec for the integrated Wi-Fi/WiMAX networks.