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    題名: An enhanced structure of layered forward error correction and interleaving for scalable video coding in wireless video delivery
    作者: Wu, Tin-Yu;Sghaier Guizani;Lee, Wei-Tsong
    貢獻者: 淡江大學電機工程學系
    日期: 2013-08-01
    上傳時間: 2014-10-09 10:57:42 (UTC+8)
    出版者: Piscataway: Institute of Electrical and Electronics Engineers
    摘要: The forward error correction (FEC) mechanism adds redundancy to the original information and uses this redundancy to recover the errors in, or loss of, the original information. Compared with the automatic retransmission request (ARQ) approach, FEC reduces delay but utilizes more bandwidth resources. To enhance video transmission over wireless networks, another mechanism, enhanced adaptive FEC (EAFEC), has been recently presented. According to the throughput and wireless channel state, EAFEC dynamically determines the length of the redundancy and reduces the transmission of unnecessary redundancy to achieve the efficient utilization of wireless networking resources. To further enhance the efficiency of EAFEC, we propose an enhanced structure, adaptive and interleaving FEC (AIFEC) using the features of FEC. Our proposed AIFEC scheme not only dynamically provides different protection strengths for video information of different priority levels based on the throughput and wireless channel state, but also significantly improves the recovery rate for consecutive packet loss.
    關聯: IEEE Wireless Communications Magazine 20(4), pp.146-152
    DOI: 10.1109/MWC.2013.6590062
    顯示於類別:[電機工程學系暨研究所] 期刊論文

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