Unequal Error Protection with Low-Density Parity Check Codes on Wireless Multimedia Transmission

• Main Authors: Hung-Yu Lien, 連宏又
• Other Authors: Song-Char Jiang
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/03087504964851432687

碩士 === 國立雲林科技大學 === 電機工程系 === 103 === The main research direction is used unequal error protection(UEP) with low-density parity check codes on wireless multimedia transmission. Unequal error protection used trellis coded modulation(TCM) and non-uniform QAM to implement the proposed idea, adding low-density parity check codes to improve error correction capability of wireless transmission. MIMO-OFDM signal detection analysis will compare the performance of unequal error protection on various signal detection techniques , such as mandatory zero (zero-forcing), vertical Bell Labs Layered Space-Time (V-blast), QR vertical Bell Labs layered Space-Time (QR-blast), and the maximum similarity search method(Maximum likelihood search). In this analysis we can find a signal detection methods with lower bit error rate(BER) and suitable for unequal error protection framework. We use 16-QAM modulation to performance simulation in symbol interference channel and AWGN channel.