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
La transmission vidéo sur l'interopérabilité mondiale mobile pour l'accès par micro-ondes (WiMAX) peut être dégradée par le serveur en raison de l'effet d'évanouissement et de transfert. Dans cet article, nous proposons un schéma de résilience aux erreurs adaptative de canal pour la transmission vidéo sur WiMAX mobile. Lorsque la condition du canal commence à déclencher un transfert, la trame actuelle est stockée dans la mémoire à long terme pour la correction d'erreur directe, et les trames suivantes sont codées à l'aide de vecteurs de mouvement doubles (MV) dans le sens d'une compensation de mouvement à hypothèses multiples. Même si une image entière est perdue, nous pouvons reconstruire les images suivantes en utilisant l'image stockée dans la mémoire à long terme. Cependant, la propagation des erreurs demeure toujours dans cette méthode de résilience aux erreurs directes. Pour actualiser les trames erronées vers le décodeur, le codeur utilise le rafraîchissement adaptatif de canal (CAR). Dans le CAR, le débit de canal est d'abord prédit à l'aide d'un paramètre de canal, d'un rapport porteuse sur interférence et bruit (CINR), et le codeur détermine de manière adaptative le nombre de blocs à coder en mode intra sur la base des informations de rétroaction. Des évaluations de performance sont présentées pour démontrer l'efficacité de la méthode proposée.
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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
Copier
@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},}
Copier
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 -