QoS control for Internet delivery of video data

Although the emerging Internet Protocol version 6 (IPv6) includes provision for quality-of-service (QoS) control capabilities, there is much uncertainty surrounding its widespread acceptance. The Internet is becoming an increasingly popular communication medium due to its wide geographic coverage and continuous availability. However, it is also a harsh environment for transmission of high-bandwidth video data due to severe and time-varying network constraints. Since the best-effort nature of the current Internet does not offer any QoS guarantees, it is necessary to provide sender/receiver-based QoS control to provide adequate video play-out quality at the receiver. In this paper, we investigate current QoS control techniques and propose an integrated approach to this problem.