TY - JOUR
T1 - A combined antenna arrays and reverse-link synchronous DS-CDMA system over frequency-selective fading channels with power control error
AU - Kim, Yong Seok
AU - Hwang, Seung Hoon
AU - Park, Hyo Yol
AU - Whang, Keum Chan
PY - 2004/8/1
Y1 - 2004/8/1
N2 - An improved antenna array (AA) has been introduced, in which reverse-link synchronous transmission technique (RLSTT) is incorporated to effectively make better an estimation of covariance matrices at a beamformer-RAKE receiver. While RLSTT is effective in the first finger at the RAKE receiver in order to reject multiple-access interference (MAI), the beamformer estimates the desired user's complex weights, enhancing its signal and reducing cochannel interference (CCI) from the other directions. In this work, it is attempted to provide a comprehensive analysis of user capacity which reflects several important factors such as the shape of multipath intensity profile (MIP), the number of antennas, and power control error (PCE), Theoretical analysis, confirmed by the simulations, demonstrates that the orthogonality provided by employing RLSTT along with AA may make the DS-CDMA system insensitive to the PCE even with fewer numbers of antennas.
AB - An improved antenna array (AA) has been introduced, in which reverse-link synchronous transmission technique (RLSTT) is incorporated to effectively make better an estimation of covariance matrices at a beamformer-RAKE receiver. While RLSTT is effective in the first finger at the RAKE receiver in order to reject multiple-access interference (MAI), the beamformer estimates the desired user's complex weights, enhancing its signal and reducing cochannel interference (CCI) from the other directions. In this work, it is attempted to provide a comprehensive analysis of user capacity which reflects several important factors such as the shape of multipath intensity profile (MIP), the number of antennas, and power control error (PCE), Theoretical analysis, confirmed by the simulations, demonstrates that the orthogonality provided by employing RLSTT along with AA may make the DS-CDMA system insensitive to the PCE even with fewer numbers of antennas.
KW - Antenna arrays
KW - Frequency-selective fading channel
KW - Power control error
KW - Reverse-link synchronous DS-CDMA
UR - http://www.scopus.com/inward/record.url?scp=6344284718&partnerID=8YFLogxK
U2 - 10.1155/S1110865704402133
DO - 10.1155/S1110865704402133
M3 - Article
AN - SCOPUS:6344284718
SN - 1110-8657
VL - 2004
SP - 1299
EP - 1307
JO - Eurasip Journal on Applied Signal Processing
JF - Eurasip Journal on Applied Signal Processing
IS - 9
ER -