DocumentCode
461741
Title
Study on V-BLAST OFDM Systems with Adaptive Bit and Power Allocation
Author
Chi, Liangang ; Wu, Yanyan ; Zhang, Xin ; Yang, Dacheng
Author_Institution
Sch. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun.
Volume
3
fYear
2006
fDate
16-20 2006
Abstract
In the V-BLAST OFDM system, if bits and power are allocated among all subchannels on average, the bad subchannels will deteriorate system performance largely. Based on this, adaptive V-BLAST OFDM system is proposed. And the water filling algorithm based on bisection iteration method is introduced. Simulation results show the proposed system satisfies the target BER and it outperforms the traditional one in spectral efficiency
Keywords
OFDM modulation; error statistics; iterative methods; space-time adaptive processing; BER; OFDM systems; V-BLAST; adaptive bit allocation; bisection iteration method; power allocation; spectral efficiency; subchannels; water filling algorithm; Adaptive arrays; Adaptive systems; Frequency domain analysis; Intersymbol interference; MIMO; OFDM; Receiving antennas; System performance; Transmitters; Transmitting antennas;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing, 2006 8th International Conference on
Conference_Location
Beijing
Print_ISBN
0-7803-9736-3
Electronic_ISBN
0-7803-9736-3
Type
conf
DOI
10.1109/ICOSP.2006.345868
Filename
4129317
Link To Document