DocumentCode :
2576002
Title :
Performance of coded residual arithmetic differential MPSK modulation
Author :
Akol, Roseline N. ; Takawira, Fambirai
Author_Institution :
Sch. of Electr., Electron. & Comput. Eng., KwaZulu-Natal Univ., Durban
Volume :
4
fYear :
2006
fDate :
3-6 April 2006
Firstpage :
1927
Lastpage :
1932
Abstract :
A major attraction for differential modulation is in non-coherent reception for a communication system propagating over fast fading channels. However, conventional differential modulation (CDM) leads to a 3 dB loss over coherent modulation. To overcome this with minimal complexity, iterative decoding employing hard decision feedback and bit-interleaved coded modulation have been suggested. The channel encoder often employs convolutional codes which may require low rates or high constraint length to reduce the flooring effect in CDM. In this paper we propose residual arithmetic codes for channel coding. We show through simulated results that the arithmetic codes can achieve similar or better bit error rate (BER) performance than convolutional codes of the same rate and asymptotic coding gain at t = 1, 2 error correcting capability with minimal complexity. We invoke the Chase algorithm to provide the soft input to the hard decision algebraic decoder for the arithmetic codes
Keywords :
algebraic codes; arithmetic codes; channel coding; computational complexity; convolutional codes; decoding; differential phase shift keying; error correction codes; error statistics; fading channels; interleaved codes; modulation coding; BER; Chase algorithm; arithmetic codes; bit error rate; bit-interleaved coded modulation; channel coding; channel encoder; coded residual arithmetic modulation; conventional differential modulation; convolutional codes; differential MPSK modulation; error correcting capability; fading channels; hard decision algebraic decoder; Arithmetic; Bit error rate; Channel coding; Convolutional codes; Fading; Feedback; Interleaved codes; Iterative decoding; Modulation coding; Performance gain;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications and Networking Conference, 2006. WCNC 2006. IEEE
Conference_Location :
Las Vegas, NV
ISSN :
1525-3511
Print_ISBN :
1-4244-0269-7
Electronic_ISBN :
1525-3511
Type :
conf
DOI :
10.1109/WCNC.2006.1696590
Filename :
1696590
Link To Document :
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