Title :
Combined MRC Diversity and Adaptive Soft Decision Feedback Differential Detection Technique
Author :
Choi, Won-Suk ; Kwon, Soon-Chan ; Seo, Jong-Soo
Author_Institution :
Sch. of Electr. & Electron. Eng., Yonsei Univ., Seoul
Abstract :
In this paper, a new decision-feedback differential detection (DF-DD) scheme is proposed, which can significantly reduce the irreducible BER due to the Doppler spread by using an adaptive linear prediction combined with a maximal ratio combining (MRC) diversity technique. The combined adaptive DF-DD and MRC diversity can produce a performance gain as compared to a conventional DF-DD with MRC diversity. Furthermore, this paper proposes a new application in a soft-decision decoding which overcomes the limitation that DF-DD could be used only in a hard-decision based system.
Keywords :
decoding; differential detection; diversity reception; error statistics; fading channels; multipath channels; BER; Doppler spread; MRC diversity; adaptive linear prediction; adaptive soft decision feedback differential detection technique; maximal ratio combining diversity technique; multipath fading channel; soft-decision decoding; Bit error rate; Convolution; Digital audio broadcasting; Digital multimedia broadcasting; Diversity reception; Fading; Feedback; Maximum likelihood decoding; Phase modulation; Viterbi algorithm; DFDD; MRC; Soft-decision decoding; T-DMB;
Conference_Titel :
Advanced Communication Technology, The 9th International Conference on
Conference_Location :
Gangwon-Do
Print_ISBN :
978-89-5519-131-8
DOI :
10.1109/ICACT.2007.358582
