Title :
The application of concatenation scheme (MLC-STBC) for image transmission
Author :
Yuan, Dong-Feng ; Wang, Qian ; Zhang, Peng
Author_Institution :
Dept. of Electr. Eng., Shandong Univ., Jinan, China
fDate :
6/23/1905 12:00:00 AM
Abstract :
In this paper, based on the characteristics of multilevel codes (MLC) and space-time block codes (STBC), a concatenation scheme (MLC-STBC) combining MLC and STBC is presented over Rayleigh fading channels. The unequal error protection (UEP) of MLC-STBC in Rayleigh fading channels for image transmission is investigated. Furthermore, taking 8ASK modulation as the example, a non-uniform signal constellation for realizing UEP of MLC-STBC is designed. Both theoretical analysis and computer simulation show that MLC-STBC scheme is a high rate and high power efficiency scheme, UEP is its inherent character and non-uniform signal constellation can improve its UEP ability. Its UEP character can enhance the transmission quality in the same bandwidth over a Rayleigh fading channel. MLC-STBC is an excellent scheme for image transmission
Keywords :
BCH codes; Rayleigh channels; amplitude shift keying; block codes; concatenated codes; error statistics; image coding; visual communication; 8ASK modulation; BCH codes; BER; MLC-STBC; Rayleigh fading channel; Rayleigh fading channels; UEP; bandwidth; computer simulation; concatenation scheme; high power efficiency; image transmission; multilevel codes; nonuniform signal constellation; space-time block codes; transmission quality; unequal error protection; Bandwidth; Block codes; Computer errors; Computer simulation; Constellation diagram; Error correction codes; Fading; Image communication; Signal analysis; Signal design;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.957137
