The aim of this network engineering research is to improve video transmission performance (such as end-to-end delay) in video telephony applications in cellular network scenarios. There exists a definite need for quality-of-service (QoS) and guaranteed throughput when using streaming media. However, in wireless environments where resources are precious, this is often not possible, especially with a large user base that is communicating simultaneously. Not only does traffic load pose a problem, but also the inherent instability of the radio links makes the task considerably more difficult. This presents the need for a new method for undertaking the task of wireless streaming media in resource-constrained cellular environments. Introduced and studied here is the effectiveness of a new transport-layer method based on UDP-lite, which is shown to significantly improve the performance of streaming media over noisy wireless networks in the Universal Mobile Telecommunications System (UMTS) cellular environment.
Department, Program, or Center
Computer Engineering (KGCOE)
Madigan, Justin and Hu, Fei, "Wireless video telephony performance enhancements: Towards applied network engineering approach" (2006). Accessed from
RIT – Main Campus