Title :
A novel multilevel codes with 16QAM
Author :
Yuan, Dong-Feng ; Zhang, Peng ; Wang, Qian ; Stark, Wayne E.
Author_Institution :
Dept. of Electr. Eng., Shandong Univ., China
Abstract :
In this paper some nonstandard partitioning rules for 16QAM constellation are proposed. With these nonstandard partitioning rules a new MSD structure is generated. For the fixed component codes length the new structure can greatly reduce the complexity of MLC(Multilevel codes) system. The time delay is just 1/2 of that with traditional partitioning rules. Simulation results show that the new partitioning rules and the new MSD structure do not create any performance loss. Furthermore for the fixed time delay the new MLC system is better than the traditional MLC system and the performance improvement is about 0.25 dB with BER equal to 10-5.
Keywords :
AWGN channels; channel coding; error statistics; modulation coding; quadrature amplitude modulation; 16QAM constellation; AWGN channel; BER; MLC; MSD structure; coded modulation; complexity; fixed component code length; multilevel system; nonstandard partitioning rules; performance; time delay; Bit error rate; Delay effects; Performance loss;
Conference_Titel :
Wireless Communications and Networking Conference, 2002. WCNC2002. 2002 IEEE
Print_ISBN :
0-7803-7376-6
DOI :
10.1109/WCNC.2002.993503
