When the wireless technique is mature enough to be the last mile solution, the IPTV multicast services under the wire and wireless environments, such as the integration of EPON and WiMAX, will become a trend. Besides, the multicast service over a wireless environment results in enhanced resource efficiency and reduced transmission power consumption due to the wireless multicast advantage property. To ensure the efficient use of network resources, this kind of application adapts the multicast technique to deliver the contents. Therefore, a receiver can subscribe an appropriate scenario based on the network status and required transmission quality. The SVC is an extension of H.264/AVC using the layered structure scheme to generate multilayer with one base layer and several enhancement layers. Usually, the scalable layered coding (SVC) technique is used to increase the end-user utility under diversified environments. The multimedia streaming applications, such as IPTV and video conference, have emerged as one of the main traffic sources with less tolerance for delay and jitters. The congest control algorithm for Dual is implemented in routers gathering traffic flow information, such as flow numbers and traffic load, and sends implicit or explicit feedback to the sender or receiver node for revising the sending rate or making active queue management. Due to the limitations of Prime methodology, the Dual plays a more important role through assisting in the provision of more accurate and quick feedback. The Primal congestion control is the source node dynamically adjusting the sending rate or window sizes depending on the indication information fed back from the Internet. The congestion control methodologies can be categorized as the Primal and the Dual. When UDP coexists with TCP, it induces not only a congestion collapse problem but also an unfairness problem that each flow cannot get the same treatment, causing an unstable Internet and lower link utilization. Recently, several applications, such as IPTV and VoIP, using User Datagram Protocol (UDP) without employing end-to-end flow and congestion control, are increasingly being deployed over the Internet. To improve the congestion collapse problem, the early TCP protocol prompted the study of end-to-end congestion avoidance and control algorithms. Performance comparisons with the GRED-I are in terms of packet dropping rate and throughput to highlight the better behavior of the proposed schemes due to taking into account the fairness and different weights for video layers. Several objectives of this proposed scheme include achieving high end user utility for video services, considering the multicast as well as unicast proprieties to meet interclass fairness, and achieving the QoS requirement by adaptively adjusting the thresholds based on the traffic situations. Besides, a multiqueue design for different priority traffic, and threshold TH and threshold region TR is proposed to achieve the different QoS requirements. The purpose of DWAS is to fairly allocate resources with high end-user utility, and the SGS is to determine the satisfactory threshold (TH) and threshold region (TR). The TSAQM is comprised of Dynamic Weight Allocate Scheme (DWAS) and Service Guarantee Scheme (SGS). In this paper, a new Active Queue Management algorithm, called Traffic Sensitive Active Queue Management (TSAQM), is proposed for providing multimedia services in routers. When UDP coexists with TCP, it induces not only congestion collapse but also an unfairness problem. Recently, with multimedia services such as IPTV, video conferencing has emerged as a main traffic source. ![]() If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.įor technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form. It also allows you to accept potential citations to this item that we are uncertain about. This allows to link your profile to this item. If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. See general information about how to correct material in RePEc. ![]() When requesting a correction, please mention this item's handle: RePEc:spr:telsys:v:68:y:2018:i:1:d:10.1007_s1123-1. You can help correct errors and omissions. All material on this site has been provided by the respective publishers and authors.
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