Efficient error recovery for multimedia data transmission over 3G cellular broadcast networks
- Authors
- Lee, Joonho; Kang, Kyungtae; Cho, Yongwoo; Kim, Junu; Shin, Heonshik
- Issue Date
- Apr-2006
- Publisher
- IEEE
- Citation
- 20TH INTERNATIONAL CONFERENCE ON ADVANCED INFORMATION NETWORKING AND APPLICATIONS, VOL 1, PROCEEDINGS, pp.683 - 688
- Indexed
- OTHER
- Journal Title
- 20TH INTERNATIONAL CONFERENCE ON ADVANCED INFORMATION NETWORKING AND APPLICATIONS, VOL 1, PROCEEDINGS
- Start Page
- 683
- End Page
- 688
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/45369
- DOI
- 10.1109/AINA.2006.163
- ISSN
- 1550-445X
- Abstract
- uWe analyze the execution time of MAC-layer Reed-Solomon decoding in cdma2000 1xEV-DO broadcast and multicast services (BCMCS), using different cache sizes and a simulated air channel. MPEG-4 video is widely used for wireless multimedia services; however, it requires successive frames within a specific time interval, which can be missed by a MAC-layer Reed-Solomon decoder due to its computation time. We propose static and dynamic proactive Reed-Solomon bypass (PRSB) schemes to alleviate this problem in mobile nodes. Our first scheme bypasses the Reed-Solomon decoding process to satisfy the MPEG-4 time constraint statically, despite varying channel conditions. The second, dynamic scheme corrects errors in a best-effort manner within this same time constraint, leading to a further quality improvement. Extensive simulation results show a dramatic quality improvement in video quality.
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