MPRTP: Multipath considerations for real-time media

Varun Singh, Saba Ahsan, Jörg Ott

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

82 Scopus citations


The Internet infrastructure often supports multiple routes between two communicating hosts and, today, especially mobile hosts usually offer multiple network interfaces, so that disjoint paths between the hosts can be constructed. Having a number of (partly or fully) disjoint paths available may allow applications to distribute their traffic, aggregate capacity of different paths, choose the most suitable subset of paths, and support failover if a path fails. Exploiting multipath characteristics has been explored for TCP, but the requirements for real-time traffic differs notably. In this paper, we devise a multipath communication model for Real-time Transport Protocol (RTP); present minimal set of required protocol extensions; develop algorithms for scheduling RTP traffic across multiple paths at the sender and a corresponding de-jittering algorithm at the receiver side; and evaluate our proposal in varying scenarios using media traffic across different emulated mobile access network setups.

Original languageEnglish
Title of host publicationProceedings of the 4th ACM Multimedia Systems Conference, MMSys 2013
Number of pages12
StatePublished - 2013
Externally publishedYes
Event4th ACM Multimedia Systems Conference, MMSys 2013 - Oslo, Norway
Duration: 28 Feb 20131 Mar 2013

Publication series

NameProceedings of the 4th ACM Multimedia Systems Conference, MMSys 2013


Conference4th ACM Multimedia Systems Conference, MMSys 2013


  • RTP
  • multimedia
  • multipath
  • scheduling


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