Streaming data transmission by using spatially coupled LDPC codes

Abstract

With the tremendous development of mobile Internet and big data, much attention has been attracted on streaming data transmission. In this paper, we propose a quasi real-time transmission scheme using spatially coupled LDPC codes for forward error correction. Recursive encoder and sliding-window decoder with low-latency and low-complexity are employed for data transmission. When any error is reported, additional information is requested and retransmitted. Capacity-approaching performance can be achieved by constructing proper ensembles according to channel conditions. Theoretical thresholds and simulation results are provided, which illustrate the good performance.