Title :
BER performance of multiple-antenna OFCDM with imperfections
Author :
Moon, Joo-Hee ; You, Young-Hwan ; Jeon, Won-Gi ; Paik, Jong-Ho
Author_Institution :
Dept. of Inf. & Commun. Eng., Sejong Univ., Seoul, South Korea
Abstract :
This letter investigates the performance degradation due to the imperfect parameters in orthogonal frequency- and code-division multiplexing (OFCDM) systems with multiple antennas. For the performance evaluation, the average bit error rate (BER) expression is generalized to the multiple-antenna case in the presence of the channel estimation error and frequency offset. Derived results show that the multiple-antenna OFCDM systems experience a severe BER degradation regardless of the number of users.
Keywords :
OFDM modulation; antenna arrays; channel estimation; code division multiplexing; error statistics; BER performance; bit error rate; channel estimation error; code-division multiplexing systems; frequency offset; imperfect parameters; multiple antennas; orthogonal frequency multiplexing; Bit error rate; Channel estimation; Code division multiplexing; Degradation; Diversity reception; Estimation error; Frequency estimation; Moon; Multiaccess communication; OFDM;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2003.822494
