&lt;title&gt;Flow and congestion control for Internet media streaming applications&lt;/title&gt;

Cen, Shanwei; Pu, Calton; Walpole, Jonathan

doi:10.1117/12.298426

Cited by 62 publications

(49 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Numerous works on streaming video have asserted that TCP is undesirable for multimedia streaming, yet propose alternate solutions compatible with the same best-effort IP infrastructure [3,9,16,15]. In this section, we identify common objections to two of TCP's basic mechanisms, packet retransmissions and congestion avoidance, that are at the root of this anti-TCP dogma.…”

Section: Anti-tcp Dogmamentioning

confidence: 99%

The Case for Streaming Multimedia with TCP

Krasic¹,

Li²,

Walpole³

2001

Interactive Distributed Multimedia Systems

Self Cite

View full text Add to dashboard Cite

Abstract. In this paper, we revisit and challenge the dogma that TCP is an undesirable choice for streaming multimedia, video in particular. For some time, the common view held that neither TCP nor UDP, the Internet's main transport protocols, are adequate for video applications. UDP's service model doesn't provide enough support to the application while TCP's provides too much. Consequently, numerous research works proposed new transport protocols with alternate service-models as more suitable for video. For example, such service models might provide higher reliability than UDP but not the full-reliability of TCP. More recently, study of Internet dynamics has shown that TCP's stature as the predominant protocol persists. Through some combination of accident and design, TCP's congestion avoidance mechanism seems essential to the Internet's scalability and stability. Research on modeling TCP dynamics in order to effectively define the notion of TCP-friendly congestion avoidance is very active. Meanwhile, proposals for video-oriented transport protocols continue to appear, but they now generally include TCPfriendly congestion avoidance. Our concern is over the marginal benefit of changing TCP's service model, given the presence of congestion avoidance. As a position paper, our contribution will not be in the form of final answers, but our hope is to convince the reader of the merit in reexamining the question: do applications need a replacement for TCP in order to do streaming video?

show abstract

Section: Anti-tcp Dogmamentioning

confidence: 99%

The Case for Streaming Multimedia with TCP

Krasic¹,

Li²,

Walpole³

2001

Interactive Distributed Multimedia Systems

Self Cite

View full text Add to dashboard Cite

show abstract

“…Although there exists a significant amount of research in this context [5], [7], [15], [21], [22], most of them are proposed for wired networks. These solutions follow the conservative rate halving behavior of TCP, which leads to unnecessary rate throttle and, hence, severe performance degradation in the wireless environments.…”

Section: Related Workmentioning

confidence: 99%

ATL: An Adaptive Transport Layer Suite for Next-Generation Wireless Internet

Akan

Akyildiz

2004

IEEE J. Select. Areas Commun.

View full text Add to dashboard Cite

Abstract-The next-generation wireless Internet (NGWI) is expected to provide a wide range of services including high-speed data and real-time multimedia to mobile users. To realize this expectation, a diverse set of challenges need to be addressed, which are posed by heterogeneous wireless networking environments within NGWI and the according application requirements. Furthermore, the architectural heterogeneities must be captured dynamically, while mobile users may roam during their connection duration. Current existing transport layer protocols have been developed for a specific network paradigm in mind, e.g., for wireless local area networks (WLANs), micro/macro wireless systems, or for satellite systems. Using these existing different transport layer protocols for NGWI to support global roaming of mobile users is not a practical solution due to processing and memory constraints of wireless terminals. Thus, there is a need for a unified adaptive transport layer protocol suite which can address the architectural heterogeneities for roaming mobile users and achieve the best performance for NGWI.In this paper, a unified adaptive transport layer (ATL) suite is introduced for NGWI which incorporates a new adaptive transport protocol (TCP-ATL) for reliable data transport and a new adaptive rate control protocol (RCP-ATL) for multimedia delivery in the NGWI. According to the requested service type, i.e., reliable data or multimedia, ATL selects the appropriate protocol. Both TCP-ATL and RCP-ATL, deploy a new adaptive congestion control method that dynamically adjusts the protocol configurations according to the current wireless network paradigms depending where the mobile user currently resides. Hence, the unified adaptive ATL protocol suite achieves high-throughput performance in all of underlying heterogeneous wireless architectures, i.e., WLANs, micro, macro, or satellite environments. Moreover, the developed adaptive congestion control explicitly takes fairness into consideration. Performance evaluation via simulation experiments reveals that the ATL protocol suite addresses the challenges posed by the NGWI and significantly improves the performance for reliable data and multimedia transport in NGWI.Index Terms-Adaptive congestion control, adaptive transport layer (ATL), multimedia transport, next-generation wireless Internet (NGWI), reliable data transport.

show abstract

“…We classify all flows into two categories according to the discussion in the Section 2. Real-Rate category is for real-rate flows, which include real-rate TCP flows and real-rate UDP flows [26,27]. Greedy category is for greedy flows, which include greedy TCP flows and non-congestion-controlled non-real-rate UDP flows.…”

Section: The Requirement Monitormentioning

confidence: 99%

“…It is related to research on transport layer protocols for real-rate flows, such as SCP [26] and RAP [27], which detect the available bandwidth and trade reliability for less delay to meet the flows' timing requirements. We believe that successfully deployment of real-rate flows in the Internet needs coordinated support from both levels.…”

Section: Related Workmentioning

confidence: 99%

<title>Rate-matching packet scheduler for real-rate applications</title>

Walpole

McNamee

et al. 2000

SPIE Proceedings

Self Cite

View full text Add to dashboard Cite

A packet scheduler is an operating system component that controls the allocation of network interface bandwidth to outgoing network flows. By deciding which packet to send next, packet schedulers not only determine how bandwidth is shared among flows, but also play a key role in determining the rate and timing behavior of individual flows. The recent explosion of rate and timing-sensitive flows, particularly in the context of multimedia applications, has focused new interest on packet schedulers. Next generation packet schedulers must not only ensure separation among flows and meet real-time performance constraints, they must also support dynamic fine-grain reallocation of bandwidth for flows with variable-bit-rate requirements. Unfortunately, today's packet schedulers either do not support rate and timing sensitive flows, or do so with reservation systems that are relatively coarse-grain and inflexible. This paper makes two contributions. First it shows how bandwidth requirements can be inferred directly from real-rate flows, without requiring explicit specifications from the application. Second, it presents the design, implementation and performance evaluation of a rate-matching packet scheduler that uses these inferred requirements to automatically and dynamically control the bandwidth allocation to flows.

show abstract

<title>Flow and congestion control for Internet media streaming applications</title>

Cited by 62 publications

References 17 publications

The Case for Streaming Multimedia with TCP

The Case for Streaming Multimedia with TCP

ATL: An Adaptive Transport Layer Suite for Next-Generation Wireless Internet

<title>Rate-matching packet scheduler for real-rate applications</title>

Contact Info

Product

Resources

About