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1.	Bravo, L, et al. (author) 2021 swepub:Mat__t
2.	Tabiri, S, et al. (author) 2021 swepub:Mat__t
3.	Skoglund, Mikael, et al. (author) Design and performance of VQ-based hybrid digital-analog joint source-channel codes 2002 In: IEEE Transactions on Information Theory. - : IEEE Information Theory Society. - 0018-9448 .- 1557-9654. ; 48:3, s. 708-720 Journal article (peer-reviewed)abstract A joint source-channel hybrid digital-analog (HDA) vector quantization (VQ) system is presented. The main advantage of the new VQ-based HDA system is that it achieves excellent rate-distortion-capacity performance at the design signal-to-noise ratio (SNR) while maintaining a graceful improvement characteristic at higher SNRs. It is demonstrated that, within the HDA framework, the parameters of the system can be optimized using an iterative procedure similar to that of channel-optimized vector quantizer design. Comparisons are made with three purely digital systems and one purely analog system. It is found that, at high SNRs, the VQ-based HDA system is superior to the other investigated systems. At low SNRs, the performance of the new scheme can be improved using the optimization procedure and using soft decoding in the digital part of the system. These results demonstrate that the introduced scheme provides an attractive method for terrestrial broadcasting applications.

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Type of publication: journal article (1)

Type of content: peer-reviewed (1)

Author/Editor: Davies, M. (2); Evans, H. (2); Jones, G. (2); King, M. (2); Lopes, L. (2); Losada, M. (2); show more...; Martin, B. (2); Negri, G. (2); Nordberg, M. (2); Qureshi, A. (2); Robson, A. (2); Romano, M. (2); Shaw, K. (2); Ventura, D. (2); Wall, R. (2); Williams, S. (2); Yang, H. (2); Morton, A. (2); Davies, E. (2); Liu, H. (2); Valente, P. (2); Liu, T. (2); Bertoli, G (2); Stewart, G. (2); Martin, J. (2); Alves, R. (2); Aytac, E (2); Campain, N (2); Davies, RJ (2); Hompes, R (2); Lakkis, Z (2); McGrath, JS (2); Maciel, J (2); Rausa, E (2); Rottoli, M (2); Shaikh, (2); Tsarkov, P (2); Brown, A. (2); James, A. (2); Zhang, Y. (2); Cardoso, J. (2); Sharma, S. (2); Silva, M. (2); Martin, S. (2); Diaz, S (2); Jones, M. (2); Manca, G. (2); Moore, R. (2); Russ, J. (2); Shaw, S. (2); show less...

University: Royal Institute of Technology (1); Karolinska Institutet (1)

Language: English (3)

Research subject (UKÄ/SCB): Engineering and Technology (1)

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