Title :
Efficient combined-demapping scheme for modified dual-carrier modulation
Author :
Yuan-Kun Xue ; Xiao-Long Wang ; Bing Jing ; Fan Ye ; Junyan Ren
Author_Institution :
State-Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
fDate :
Oct. 29 2012-Nov. 1 2012
Abstract :
Modified dual carrier modulation (MDCM) is introduced to enhance performance of WiMedia UWB system whereas hardware complexity soars exponentially due to the increased dimension of constellation. This paper proposes an efficient combined demapping scheme to offer partial soft-decision for MDCM while few related work is available. Compared with previous work, the proposed method demonstrates roughly 1.5dB gain at BER of 10-6 and significant decrease in computation complexity.
Keywords :
Viterbi decoding; computational complexity; error statistics; modulation; ultra wideband communication; BER; Viterbi-decoder; WiMedia UWB system; combined demapping; combined-demapping scheme; computation complexity; constellation; gain 1.5 dB; modified dual-carrier modulation; partial soft-decision for MDCM; Bit error rate; Complexity theory; Euclidean distance; Hardware; Phase shift keying;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2012 IEEE 11th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4673-2474-8
DOI :
10.1109/ICSICT.2012.6467582
