DocumentCode :
2262385
Title :
A Study on Post-Detection Diversity Combining for OFDM Systems
Author :
Ishikawa, Yuya ; Sasamori, Fumihito ; Handa, Shiro ; Oshita, Shinjiro
Author_Institution :
Fac. of Eng., Shinshu Univ., Nagano
fYear :
2006
fDate :
27-30 Nov. 2006
Firstpage :
1
Lastpage :
4
Abstract :
Adaptive modulation, in which a transmitter could be adapting constellation size depending on the channel, and diversity combining, in which a transmitter and/or a receiver could be adapting branch size, are both transmission schemes to combat the fading. These two schemes can be applicable to each digital-modulated symbol in OFDM transmission. In this paper, we propose a frequency diversity scheme within one OFDM symbol. When we assume two branches diversity, the information bit rate results in half, but by combining the two symbols at a receiver, the BEP is improved owing to both binal bit energy and diversity gain. We verify the advantage of the proposed scheme with both theoretical analysis and Monte Carlo simulation.
Keywords :
Monte Carlo methods; OFDM modulation; adaptive modulation; diversity reception; fading channels; Monte Carlo simulation; OFDM systems; adaptive modulation; digital-modulated symbol; fading channel; frequency diversity scheme; orthogonal frequency division multiplexing; post-detection diversity combining; AWGN; Bit rate; Delay; Diversity methods; Diversity reception; Fading; Frequency diversity; OFDM modulation; Transmitters; Wireless LAN;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communication Technology, 2006. ICCT '06. International Conference on
Conference_Location :
Guilin
Print_ISBN :
1-4244-0800-8
Electronic_ISBN :
1-4244-0801-6
Type :
conf
DOI :
10.1109/ICCT.2006.341795
Filename :
4146396
Link To Document :
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