Frequency-domain Adaptive Antenna Array for Single-carrier Uplink Transmission Using Frequency- Domain Equalization
نویسندگان
چکیده
The bit error rate (BER) performance of single-carrier (SC) block transmission in a frequency-selective fading channel can be significantly improved by the use of frequency-domain equalization (FDE). However, in multi-cell environment, the BER performance is degraded due to co-channel interference. Adaptive antenna array (AAA) is effective to suppress the cochannel interference. In this paper, we propose frequencydomain adaptive antenna array (AAA) for SC uplink transmission using MMSE-FDE. Since the frequency-domain AAA tries to form an antenna beam pattern based on the minimization of the average interference power, the same array weight can be used for all the frequency components. After the array combining, FDE is performed. In the paper, the BER performance is evaluated by computer simulation to show that the array weight converges in one block even if the normalized LMS algorithm is used. Keywords-sigle-carrier transmission, adaptive antenna array, frequency-domain equalization
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