Enhanced Compressed RTP (CRTP) for Links with High Delay, Packet Loss and Reordering

Koren, T.; Casner, S.; Geevarghese, J.; Thompson, Brian J.; Ruddy, P.

doi:10.17487/rfc3545

Cited by 48 publications

(30 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compression of RTP packets via the basic Van Jacobson algorithm with the TWICE decoder is incorporated into RFC 2508 [10]. The Enhanced Compressed RTP (ECRTP) algorithm allows for multiple transmission of compressed information based on channel conditions, and is incorporated into RFC 3545 [11].…”

Section: Header Compression Methodologymentioning

confidence: 99%

Error-resilient packet header compression

Suryavanshi

Nosratinia

2008

IEEE Trans. Commun.

View full text Add to dashboard Cite

Abstract-Full packet headers consume valuable bitrate, which is especially costly in satellite links and some terrestrial wireless links. This has motivated the compression of packet headers by exploiting their correlation via using finite-state machines. The drawback is that compression in the presence of channel errors (packet loss) may result in error propagation. We offer several designs by adapting error control codes for the requirements of packet header compression in uni-directional and bi-directional links, and explore the tradeoffs in complexity, delay, and system performance. For the bi-directional link, we propose a new design called predictive hybrid ARQ and evaluate its performance. Experiments show significant gains in link-layer throughput as well as improved application layer performance demonstrated via video transfer experiments.

show abstract

Section: Header Compression Methodologymentioning

confidence: 99%

Error-resilient packet header compression

Suryavanshi

Nosratinia

2008

IEEE Trans. Commun.

View full text Add to dashboard Cite

show abstract

“…At the same time, cRTP (Compressing IP/UDP/RTP Headers for Low-Speed Serial Links) was defined [42], being also capable of compressing IP/UDP/RTP headers. Some years later, ECRTP (Enhanced Compressed RTP) [43] presented some improvements with respect to cRTP in links with high delay, packet loss and packet reordering. The last compressing algorithm presented was ROHC (RObust Header Compression) [44], which prevents the desynchronization of the context, a problem especially affecting wireless scenarios.…”

Section: Traffic Optimization By Means Of Header Compressionmentioning

confidence: 99%

On the effectiveness of an optimization method for the traffic of TCP-based multiplayer online games

Saldaña

2015

Multimed Tools Appl

View full text Add to dashboard Cite

This paper studies the feasibility of using an optimization method, based on multiplexing and header compression, for the traffic of Massively Multiplayer Online Role Playing Games (MMORPGs) using TCP at the Transport Layer. Different scenarios where a number of flows share a common network path are identified. The adaptation of the multiplexing method is explained, and a formula of the savings is devised. The header compression ratio is obtained using real traces of a popular game and a statistical model of its traffic is used to obtain the bandwidth saving as a function of the number of players and the multiplexing period. The obtained savings can be up to 60 % for IPv4 and 70 % for IPv6. A Mean Opinion Score model from the literature is employed to calculate the limits of the multiplexing period that can be used without harming the user experience.The interactions between multiplexed and non-multiplexed flows, sharing a bottleneck with different kinds of background traffic, are studied through simulations. As a result of the tests, some limits for the multiplexing period are recommended: the unfairness between players can be low if the value of the multiplexing period is kept under 10 or 20 ms. TCP background flows using SACK (Selective Acknowledgment) and Reno yield better results, in terms of fairness, than Tahoe and New Reno. When UDP is used for background traffic, high values of the multiplexing period may stress the unfairness between flows if network congestion is severe.

show abstract

“…The combination of multiplexing and compression was first proposed in [5], by the use of Enhanced Compressed RTP [6], PPPMux [7] and L2TPv3 [8] protocols, with the aim of reducing the overhead of VoIP flows using RTP. In [9] another multiplexing method for VoIP was proposed, with the idea of maintaining a good quality level.…”

Section: Related Workmentioning

confidence: 99%