CDMA downlink code acquisition performance in frequency-selective fading channels

@inproceedings{citeulike:2802314, abstract = {In this paper, the performance of some code acquisition schemes are studied in the downlink of DS-CDMA systems. The conventional matched filter, the minimum variance method, the MUSIC algorithms and the eigenvector method based delay acquisition schemes are studied in a frequency-selective fading channel. The three last algorithms are based on different estimation schemes for the inverse of the sample-covariance matrix. Based on the results, the minimum variance based method can be used to improve the acquisition performance in comparison to the conventional non-coherent matched filter method. The MUSIC algorithm becomes useless in highly loaded systems. The best performance, however, was obtained by using a longer despreading interval in the conventional delay estimator. Unfortunately, it would require either unmodulated pilot channel or a control channel with lower data rate, which may not be available in all applications}, author = {Latva-Aho, M. and Lilleberg, J. and Iinatti, J. and Juntti, M. }, booktitle = {Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium on}, citeulike-article-id = {2802314}, doi = {10.1109/PIMRC.1998.731442}, journal = {Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium on}, keywords = {acquisition, cdma, channel, code, fading, frequency, selective}, pages = {1476--1480 vol.3}, posted-at = {2008-05-15 19:24:26}, priority = {2}, title = {CDMA downlink code acquisition performance in frequency-selective fading channels}, url = {http://dx.doi.org/10.1109/PIMRC.1998.731442}, volume = {3}, year = {1998} }

TY - CONF ID - citeulike:2802314 L3 - citeulike-article-id:2802314 TI - CDMA downlink code acquisition performance in frequency-selective fading channels T2 - Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium on JF - Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium on VL - 3 SP - 1476 EP - 1480 vol.3 N2 - In this paper, the performance of some code acquisition schemes are studied in the downlink of DS-CDMA systems. The conventional matched filter, the minimum variance method, the MUSIC algorithms and the eigenvector method based delay acquisition schemes are studied in a frequency-selective fading channel. The three last algorithms are based on different estimation schemes for the inverse of the sample-covariance matrix. Based on the results, the minimum variance based method can be used to improve the acquisition performance in comparison to the conventional non-coherent matched filter method. The MUSIC algorithm becomes useless in highly loaded systems. The best performance, however, was obtained by using a longer despreading interval in the conventional delay estimator. Unfortunately, it would require either unmodulated pilot channel or a control channel with lower data rate, which may not be available in all applications KW - acquisition KW - cdma KW - channel KW - code KW - fading KW - frequency KW - selective AU - Latva-Aho, M AU - Lilleberg, J AU - Iinatti, J AU - Juntti, M PY - 1998/// UR - http://dx.doi.org/10.1109/PIMRC.1998.731442 ER -