Title :
Efficient implementation of parallel decision feedback decoders for broadband applications
Author :
Lou, H. ; Rupp, M. ; Urbanke, R.L. ; Viswanathan, H. ; Krishnamoorthy, R.
Author_Institution :
Bell Lab., Lucent Technol., Murray Hill, NJ, USA
Abstract :
Parallel Decision-Feedback Decoders (PDFD) use a joint equalization and channel decoding scheme that performs decision-feedback equalization based on each survivor path in the channel decoder. In this paper, we propose novel efficient computation methods to implement the PDFD. We show that, contrary to the belief that PDFD is too complex to implement, standard Viterbi decoders can be modified to implement the PDFD and achieve very high bit-rates
Keywords :
channel coding; decision feedback equalisers; decoding; parallel processing; DFE; broadband applications; channel decoder; decision-feedback equalization; efficient computation methods; joint equalization/channel decoding scheme; parallel decision feedback decoders; standard Viterbi decoder modification; very high bit-rates; Decision feedback equalizers; Decoding; Feedforward systems; Feeds; Interference; Modulation coding; Niobium; Output feedback; State feedback; Viterbi algorithm;
Conference_Titel :
Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on
Conference_Location :
Pafos
Print_ISBN :
0-7803-5682-9
DOI :
10.1109/ICECS.1999.814448
