Achieving the rate-distortion bound with low-density generator matrix codes

It is shown that binary low-density generator matrix codes can achieve the rate-distortion bound of discrete memoryless sources with general distortion measure via multilevel quantization. A practical encoding scheme based on the surveypropagation algorithm is proposed. The effectiveness of the proposed scheme is verified through simulation.

• Type: Journal
• Year: 2010
• Where: TCOM
• Authors: Zhibin Sun, Mingkai Shao, Jun Chen, Kon Max Wong, Xiaolin Wu
• Keywords: Binary Low-density Generator, General Distortion Measure, Practical Encoding Scheme, Software Engineering, TCOM 2010