The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Penghantaran video melalui kebolehoperasian seluruh dunia mudah alih untuk capaian gelombang mikro (WiMAX) boleh direndahkan secara pelayan akibat kesan pudar dan lepas tangan. Dalam makalah ini, kami mencadangkan skim ketahanan ralat penyesuaian saluran untuk penghantaran video melalui WiMAX mudah alih. Apabila keadaan saluran mula mencetuskan lepas tangan, bingkai semasa disimpan dalam ingatan jangka panjang untuk pembetulan ralat ke hadapan, dan bingkai berikut dikodkan dengan menggunakan vektor gerakan berganda (MV) dalam erti kata pampasan gerakan berbilang hipotesis. Walaupun keseluruhan bingkai hilang, kita boleh membina semula bingkai berikut menggunakan bingkai yang disimpan dalam ingatan jangka panjang. Walau bagaimanapun, penyebaran ralat masih kekal dalam kaedah daya tahan ralat ke hadapan ini. Untuk menyegarkan semula bingkai yang salah kepada penyahkod, pengekod menggunakan penyegaran adaptif saluran (CAR). Dalam CAR, kadar saluran pertama kali diramalkan menggunakan parameter saluran, pembawa kepada gangguan dan nisbah hingar (CINR), dan pengekod secara adaptif menentukan bilangan blok untuk dikodkan dalam mod intra berdasarkan maklumat maklum balas. Penilaian prestasi dibentangkan untuk menunjukkan keberkesanan kaedah yang dicadangkan.
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Salinan
Hye-Soo KIM, Byeong-Doo CHOI, Chun-Su PARK, Sang-Hee PARK, Sung-Jea KO, "Channel Adaptive Error Resilience Scheme for Video Transmission over Mobile WiMAX" in IEICE TRANSACTIONS on Communications,
vol. E91-B, no. 10, pp. 3052-3059, October 2008, doi: 10.1093/ietcom/e91-b.10.3052.
Abstract: Video transmission over mobile worldwide interoperability for microwave access (WiMAX) can be serverly degraded due to the effect of fading and handoff. In this paper, we propose a channel adaptive error resilience scheme for video transmission over mobile WiMAX. When the channel condition begins to trigger handoff, the current frame is stored in the long-term memory for the forward error correction, and the following frames are encoded by using double motion vectors (MVs) in the sense of multi-hypothesis motion compensation. Even if a whole frame is lost, we can reconstruct the following frames using the stored frame in the long-term memory. However, the error propagation still remains in this forward error resilience method. To refresh the erroneous frames to the decoder, the encoder utilizes the channel adaptive refreshing (CAR). In the CAR, the channel rate is first predicted using channel parameter, a carrier to interference and noise ratio (CINR), and the encoder adaptively determines the number of blocks to be encoded in the intra mode based on the feedback information. Performance evaluations are presented to demonstrate the effectiveness of the proposed method.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e91-b.10.3052/_p
Salinan
@ARTICLE{e91-b_10_3052,
author={Hye-Soo KIM, Byeong-Doo CHOI, Chun-Su PARK, Sang-Hee PARK, Sung-Jea KO, },
journal={IEICE TRANSACTIONS on Communications},
title={Channel Adaptive Error Resilience Scheme for Video Transmission over Mobile WiMAX},
year={2008},
volume={E91-B},
number={10},
pages={3052-3059},
abstract={Video transmission over mobile worldwide interoperability for microwave access (WiMAX) can be serverly degraded due to the effect of fading and handoff. In this paper, we propose a channel adaptive error resilience scheme for video transmission over mobile WiMAX. When the channel condition begins to trigger handoff, the current frame is stored in the long-term memory for the forward error correction, and the following frames are encoded by using double motion vectors (MVs) in the sense of multi-hypothesis motion compensation. Even if a whole frame is lost, we can reconstruct the following frames using the stored frame in the long-term memory. However, the error propagation still remains in this forward error resilience method. To refresh the erroneous frames to the decoder, the encoder utilizes the channel adaptive refreshing (CAR). In the CAR, the channel rate is first predicted using channel parameter, a carrier to interference and noise ratio (CINR), and the encoder adaptively determines the number of blocks to be encoded in the intra mode based on the feedback information. Performance evaluations are presented to demonstrate the effectiveness of the proposed method.},
keywords={},
doi={10.1093/ietcom/e91-b.10.3052},
ISSN={1745-1345},
month={October},}
Salinan
TY - JOUR
TI - Channel Adaptive Error Resilience Scheme for Video Transmission over Mobile WiMAX
T2 - IEICE TRANSACTIONS on Communications
SP - 3052
EP - 3059
AU - Hye-Soo KIM
AU - Byeong-Doo CHOI
AU - Chun-Su PARK
AU - Sang-Hee PARK
AU - Sung-Jea KO
PY - 2008
DO - 10.1093/ietcom/e91-b.10.3052
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E91-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2008
AB - Video transmission over mobile worldwide interoperability for microwave access (WiMAX) can be serverly degraded due to the effect of fading and handoff. In this paper, we propose a channel adaptive error resilience scheme for video transmission over mobile WiMAX. When the channel condition begins to trigger handoff, the current frame is stored in the long-term memory for the forward error correction, and the following frames are encoded by using double motion vectors (MVs) in the sense of multi-hypothesis motion compensation. Even if a whole frame is lost, we can reconstruct the following frames using the stored frame in the long-term memory. However, the error propagation still remains in this forward error resilience method. To refresh the erroneous frames to the decoder, the encoder utilizes the channel adaptive refreshing (CAR). In the CAR, the channel rate is first predicted using channel parameter, a carrier to interference and noise ratio (CINR), and the encoder adaptively determines the number of blocks to be encoded in the intra mode based on the feedback information. Performance evaluations are presented to demonstrate the effectiveness of the proposed method.
ER -