Bit-wise demodulation for 16-QAM with BICM
ICCSC'02. 1st IEEE International Conference on Circuits and Systems for Communications. Proceedings (IEEE Cat. No.02EX605) - Trang 444-449
Tóm tắt
Bit-wise demodulation (BWD) is a novel demodulation method used in 16-QAM with BICM. Bit-interleaved coded modulation (BICM) proposed by Zehavi (1992) has proved to be capable of improving the performance of coded modulation over a Rayleigh fading channel by bit-wise interleaving at the encoder output, and using an appropriate soft-decision metric as an input to a Viterbi (1989) decoder. This paper aims at advancing BICM with a new demodulating method, BWD, which can achieve better performance than current BICM and a simpler structure. The BICM with BWD can be easily implemented with the same of receiver structure as QPSK.
Từ khóa
#Demodulation #Modulation coding #Fading #Interleaved codes #Quadrature amplitude modulation #Decoding #Viterbi algorithm #Quadrature phase shift keying #AWGN #Constellation diagramTài liệu tham khảo
10.1049/el:19960754
hanzo, 2000, Single and multi-carrier quadrature amplitude modulation, Principles and Applications for Personal Communications WATM and Broadcasting
simon, 1995, Digital Communication Techniques-Signal Design and Detection
trott, 1992, The algebraic structure of trellis codes
hagenauer, 1980, Viterbi Decoding of Convolutional Codes for Fading and Burst Channels, Proc of the 1980 Zurich Seminar on Digital Comm IEEE Cat No 80CH15214 COM, g2.1
yang, 2000, A Recursive Algorithm for the Error Probability Evaluation of M-QAM, IEEE Communication Letters, 4
10.1109/26.141453
10.1109/35.31452
10.1109/18.669123
al-semari, 1996, Bit interleaved I-Q TeM, ISITA 96
10.1109/18.771140
huber, 1994, Multilevel Codes: Distance Profiles and Channel Capacity, ITG-Fachtagung Codierung Fur Quelle and Kanal, 305
10.1109/TIT.1982.1056454
10.1109/TIT.1977.1055718
wachsmann, 1998, Comparison of coded modulatio4n schemes for the AWGN and the Rayleigh fading channel, ISIT 1998, 5