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Jitter reduction in CBR HDTV transport stream packet communications over lossy ATM network

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5 Author(s)
Jong Moo Sohn ; Dept. of Electron. Eng., Yonsei Univ., Seoul, South Korea ; Jong Ick Lee ; In Hwa Hong ; Byung Ryul Lee
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For the reduction of the jitter originated from the cell losses in an ATM network when CBR traffic is transferred on AAL5, we propose that the receiver maintain a timer whose expiration time is proportional to the cell time of the source traffic plus the standard deviation of the 1-point CDV of the received ATM cells. Moreover to enhance the granularity of the error or loss detection mechanism in the AAL5 PDUs, we also modified the AAL5 PDU trailer fields so that each cell comprising the AAL5 PDU has a sequence number field. The simulation results show that the peak-to-peak PDV of the AAL5 PDU by the proposed method is less than 69.4% to that by AAL5. Moreover, the AAL5 user-HDTV decoder-receives the same or more error-free transport packets in the proposed algorithm than those in the ITU-T AAL5 for the same network simulation environment

Published in:

Computer Communications and Networks, 1998. Proceedings. 7th International Conference on

Date of Conference:

12-15 Oct 1998