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@article{1324427, author = {Kabát, Milan and David, Vojtěch and Holub, Petr and Pulec, Martin}, article_location = {Amsterdam, The Netherlands}, article_number = {1}, doi = {http://dx.doi.org/10.1016/j.future.2015.04.007}, keywords = {Graphics processing unit (GPU); Forward error correction; Low-density generation matrix; High-definition video; Low latency transmissions; UltraGrid}, language = {eng}, issn = {0167-739X}, journal = {Future Generation Computer Systems}, title = {High-performance forward error correction: Enabling multi-gigabit flows and beyond on commodity GPU and CPU hardware in presence of packet loss}, url = {http://www.sciencedirect.com/science/article/pii/S0167739X15000990}, volume = {54}, year = {2016} }
TY - JOUR ID - 1324427 AU - Kabát, Milan - David, Vojtěch - Holub, Petr - Pulec, Martin PY - 2016 TI - High-performance forward error correction: Enabling multi-gigabit flows and beyond on commodity GPU and CPU hardware in presence of packet loss JF - Future Generation Computer Systems VL - 54 IS - 1 SP - 326 - 335 EP - 326 - 335 PB - Elsevier Science SN - 0167739X KW - Graphics processing unit (GPU) KW - Forward error correction KW - Low-density generation matrix KW - High-definition video KW - Low latency transmissions KW - UltraGrid UR - http://www.sciencedirect.com/science/article/pii/S0167739X15000990 L2 - http://www.sciencedirect.com/science/article/pii/S0167739X15000990 N2 - In demanding real-time multimedia transmissions, even a small packet loss might significantly degrade the visual quality. As retransmission is not an option in real-time transfers especially when transmitting the data over long distances, it is necessary to employ mechanisms of Forward Error Correction (FEC). Low-Density Generator Matrix (LDGM) codes are known to be suitable for coding on large block sizes, however, high bitrates of currently used video formats (FullHD, 4K) also require high throughput of FEC coding and decoding. We propose a parallel design of LDGM encoding and decoding algorithms suitable for off-the-shelf, (massively) parallel platforms, such CPUs with vector units or GPUs, and evaluate our approach in real-world scenarios of high-definition and 4K video transmissions. Our results show that offloading FEC computation to such platform is beneficial for low-latency, high-quality multimedia transmissions and may even enable transmissions beyond 10Gbps once the commodity network interfaces reach this speed. ER -
KABÁT, Milan, Vojtěch DAVID, Petr HOLUB and Martin PULEC. High-performance forward error correction: Enabling multi-gigabit flows and beyond on commodity GPU and CPU hardware in presence of packet loss. \textit{Future Generation Computer Systems}. Amsterdam, The Netherlands: Elsevier Science, 2016, vol.~54, No~1, p.~326 - 335. ISSN~0167-739X. Available from: https://dx.doi.org/10.1016/j.future.2015.04.007.
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