Concurrent Multipath Transmission with Adaptive Forward Error Correction Mechanism for Delay-Sensitive Videostreaming in Wireless Home Networks

Abstract

This paper proposes the Delay-sensitive Multipath FEC (DM-FEC) mechanism involving an estimation of available bandwidth and a mathematical analytical model with which the appropriate transmission rate, FEC block length and FEC redundancy on each path in a multipath environment can be determined to solve previous problems. The DM-FEC mechanism not only can select the appropriate transmission rate and FEC redundancy on each path but also adaptively adjusts the FEC block length and concurrently sends data over multiple paths to overcome burst packet losses which otherwise can cause the video frame to be unplayable and impede the timely recovery of video information. The experimental results obtained show that the DM-FEC mechanism has better performance than conventional CMT-FEC mechanisms in wireless home networks.