A low-complexity unequal error protection of H.264/AVC video using adaptive hierarchical QAM

Chang, Yoong Choon; Lee, Sze Wei; Komiya, R.

doi:10.1109/tce.2006.273127

Cited by 40 publications

(40 citation statements)

References 8 publications

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“…• Transceivers based on UEP schemes: as in [42], [68], [72], [86], [90], [95]- [97], allocate an unequal amount of transmit power to the different layers. These schemes are employed in the physical layer of the Open Systems Interconnection (OSI) model.…”

Section: Layered Video Communicationsmentioning

confidence: 99%

“…In [68], [72], [80], [105], UEP schemes conceived for video transmission using hierarchical quadrature amplitude modulation (HQAM) were investigated, which considered the unequal importance of the different layers in SVC, as well as the unequal importance of both the intra-coded frames (I-frame) and of the predicted frames (P-frame). Specifically, the video bits of different importance were mapped to the different-integrity bits of the modulation constellation points of HQAM.…”

Section: A Transceivers Based Uepmentioning

confidence: 99%

“…An adaptive UEP scheme was proposed in [74] for robust and scalable wireless video streaming. By jointly exploiting the temporal inter-frame dependency and the quality dependency between the scalable layers, the proposed scheme adaptively assigned unequal-protection FEC codes to the packets of each layer and Chang et al [68] proposed HQAM based UEP for H.264/AVC coded video, which considered the different importance of the I-frames and P-frames. Ghandi and Ghanbari [72] benchmarked SVC against the partition mode of H.264/AVC video codec, where UEP is achieved by employing HQAM.…”

Section: B Packet-level Fecmentioning

confidence: 99%

See 2 more Smart Citations

A Tutorial and Review on Inter-Layer FEC Coded Layered Video Streaming

Huo

Hellge

Wiegand

et al. 2015

IEEE Commun. Surv. Tutorials

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Abstract-Layered video coding creates multiple layers of unequal importance, which enables us to progressively refine the reconstructed video quality. When the base layer (BL) is corrupted or lost during transmission, the enhancement layers (ELs) must be dropped, regardless whether they are perfectly decoded or not, which implies that the transmission power assigned to the ELs is wasted. For the sake of combating this problem, the class of inter-layer forward error correction (IL-FEC) solutions, also referred to as layer-aware FEC (LA-FEC 1 ), has been proposed for layered video transmissions, which jointly encode the BL and the ELs, thereby protecting the BL using the ELs. This tutorial aims for inspiring further research on IL-FEC/LA-FEC techniques, with special emphasis on the family of soft-decoded bit-level IL-FEC schemes.

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Section: Layered Video Communicationsmentioning

confidence: 99%

Section: A Transceivers Based Uepmentioning

confidence: 99%

Section: B Packet-level Fecmentioning

confidence: 99%

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A Tutorial and Review on Inter-Layer FEC Coded Layered Video Streaming

Huo

Hellge

Wiegand

et al. 2015

IEEE Commun. Surv. Tutorials

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“…In [22], our co-author studied asymmetric 8-PSK for adaptive transmission strategies in mobile ad hoc networks. In [23], a low complexity UEP scheme using hierarchical QAM was discussed for H.264 video transmission. In [4], our coauthors demonstrated H.264 video quality improvement by using asymmetric 8-PSK modulation over Raleigh fading channels.…”

Section: Related Researchmentioning

confidence: 99%

“…This requires a real-time feedback channel from the receiver which may not always exist. In [23], the asymmetry parameter α was chosen such that the highest priority bit error rate is fixed at 10 -5 , irrespective of the relative importance of the other priorities or even the channel SNR. The choice of system parameters greatly influences the UEP performance.…”

Section: Novelty Of the Proposed Approachmentioning

confidence: 99%

A Cross-Layer Unequal Error Protection Scheme for Prioritized H.264 Video using RCPC Codes and Hierarchical QAM

Chung

Kumar

Paluri³

et al. 2013

Journal of Information Processing Systems

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Abstract-We investigate the rate-compatible punctured convolutional (RCPC) codes concatenated with hierarchical QAM for designing a cross-layer unequal error protection scheme for H.264 coded sequences. We first divide the H.264 encoded video slices into three priority classes based on their relative importance. We investigate the system constraints and propose an optimization formulation to compute the optimal parameters of the proposed system for the given source significance information. An upper bound to the significance-weighted bit error rate in the proposed system is derived as a function of system parameters, including the code rate and geometry of the constellation. An example is given with design rules for H.264 video communications and 3.5-4 dB PSNR improvement over existing RCPC based techniques for AWGN wireless channels is shown through simulations.

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Near‐Capacity Variable‐Length Coding

Hanzo¹,

Maunder²,

Wang³

et al. 2010

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A low-complexity unequal error protection of H.264/AVC video using adaptive hierarchical QAM

Cited by 40 publications

References 8 publications

A Tutorial and Review on Inter-Layer FEC Coded Layered Video Streaming

A Tutorial and Review on Inter-Layer FEC Coded Layered Video Streaming

A Cross-Layer Unequal Error Protection Scheme for Prioritized H.264 Video using RCPC Codes and Hierarchical QAM

Near‐Capacity Variable‐Length Coding

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