Title :
A bit allocation algorithm for multi-carrier coded modulation system
Author :
Liu, Danpu ; Yue, Guangxin
Author_Institution :
Beijing Univ. of Posts & Telecommun., China
Abstract :
When trellis-coded modulation is used in the multi-carrier system, the total bits increase and vary with the transmission bandwidth, the gain obtained by each subchannel is not the same. So the optimum bit allocation of the system becomes more difficult. This paper has synthesized those factors and improved the previous algorithm to adapt the multi-carrier trellis-coded modulation system. The simulation results have shown it is close to the optimum
Keywords :
trellis coded modulation; AWGN; TCM; bit allocation algorithm; coding gain; multi-carrier trellis-coded modulation system; optimum bit allocation; simulation results; subchannel gain; transmission bandwidth; Attenuation; Bandwidth; Bit rate; Convolutional codes; Decoding; Modulation coding; Signal generators; Telecommunications; Transmitters; Viterbi algorithm;
Conference_Titel :
Communication Technology Proceedings, 1998. ICCT '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
7-80090-827-5
DOI :
10.1109/ICCT.1998.743110
