Retracted: Adjusting Forward Error Correction for Media Streaming

Abstract

Considering time constraints in multimedia streaming, multimedia applications use UDP protocol which does not guarantee data arrival. However, UDP flows often have a high data loss rate that needs to be dealt with. Forward Error Correction (FEC) is one of the techniques used to tackle this problem by adding redundant data to the flow and helping receivers to recover missed data. Another technique used is Interleaving improves the chance of recovery particularly during data burst; however it causes delay at the receiver side. This paper is proposing a new data transfer protocol that combines the two techniques in an adaptive fashion to improve data loss recovery by explicitly adapting the amount of redundancy and interleaving to the measured burst loss. a new parameter “recovery depth” is defined and controlled according to the transport media condition. Using higher recovery depth values in bursty loss increases the recovered. The adaptive scheme using the recovery depth parameter is discussed and the results of network simulations are demonstrated. We demonstrate that overall network performance for multimedia streaming application is improved using the new scheme.