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Polar Coding for Efficient Transport Layer Multicast

Publication by Pablo Gil Pereira, Thorsten Herfet
Related to the Energy-, Latency- And Resilience-aware Networking (e.LARN) project
Published in arXiv e-prints, 2022


In this paper, we shed light on how an adaptive, efficient error coding in the transport layer helps ensure the application’s requirements. We recap the use of MDS codes and show that binary coding can significantly reduce the complexity and hence increase the applicability also for embedded devices. We exploit the persymmetric structure of the generator matrix in polar codes to establish a duality of dispersion over channels (the polarization effect) and over packets (the generality required for multicast transmission), thereby constructing systematic polar codes for incremental redundancy whose performance, despite a much lower complexity, is near to MDS codes for medium-range residual loss rates.