Title :
Higher State Trellis Coded Modulation for Asymmetric Digital Subscriber Transceivers
Author :
Arif, Muhammad ; Sheikh, Noor M.
Author_Institution :
Univ. of Eng. & Technol., Lahore
Abstract :
A 128 state 4D TCM code for ADSL assuming AWGN is analyzed. The performance is compared with 16 state (3, 2, 5) linear 4D code developed by L. F. Wei [1]. Simulation shows an improvement of 20% in spectral efficiency. We have also analyzed 8-DMT symbol based decoding for Wei´s code 16 state (3, 2, 5) in up stream direction and achieved .9 db gain.
Keywords :
AWGN channels; decoding; digital subscriber lines; transceivers; trellis coded modulation; 8-DMT symbol; ADSL; AWGN; Wei´s code; asymmetric digital subscriber transceiver; trellis coded modulation; AWGN; Additive white noise; Bandwidth; Bit error rate; Digital modulation; Modulation coding; OFDM modulation; Quadrature amplitude modulation; Signal to noise ratio; Transceivers; Asymmetric Digital Subscriber Line (ADSL); Spectral Efficiency; Trellis Coded Modulation (TCM);
Conference_Titel :
Microwaves, Radar & Wireless Communications, 2006. MIKON 2006. International Conference on
Conference_Location :
Krakow
Print_ISBN :
978-83-906662-7-3
DOI :
10.1109/MIKON.2006.4345211
