A DS-CDMA code acquisition scheme robust to residual code phase offset variation

@article{citeulike:2802213, abstract = {We first investigate the effect of residual code phase offset on the direct-sequence code-division multiple-access code acquisition scheme using a noncoherent matched filter receiver. We then propose a new code acquisition scheme that is robust to the variation of the residual code phase offset and outperforms the conventional scheme. When the code phase offset normalized to the chip duration between two sequences is within the advancing step size, the sum of two successive matched filter outputs has a constant value regardless of the residual code phase offset when the noise is absent. Based on this observation, we propose a new code acquisition scheme and investigate the performance of the scheme. The proposed code acquisition scheme is analyzed in an additive white Gaussian noise and multiple-access interference environment. Finally, numerical results are given to show that the proposed scheme is more robust to the variation of the residual code phase offset and has better performance than the conventional scheme on average}, author = {Yoon, Seokho and Song, Iickho and Kim, Sun Y. and Park, So R. }, booktitle = {Vehicular Technology, IEEE Transactions on}, citeulike-article-id = {2802213}, doi = {10.1109/25.901909}, journal = {Vehicular Technology, IEEE Transactions on}, keywords = {acquisition, cdma, code, phase}, number = {6}, pages = {2405--2418}, posted-at = {2008-05-15 18:44:29}, priority = {2}, title = {A DS-CDMA code acquisition scheme robust to residual code phase offset variation}, url = {http://dx.doi.org/10.1109/25.901909}, volume = {49}, year = {2000} }

TY - JOUR ID - citeulike:2802213 L3 - citeulike-article-id:2802213 TI - A DS-CDMA code acquisition scheme robust to residual code phase offset variation T2 - Vehicular Technology, IEEE Transactions on JF - Vehicular Technology, IEEE Transactions on VL - 49 IS - 6 SP - 2405 EP - 2418 N2 - We first investigate the effect of residual code phase offset on the direct-sequence code-division multiple-access code acquisition scheme using a noncoherent matched filter receiver. We then propose a new code acquisition scheme that is robust to the variation of the residual code phase offset and outperforms the conventional scheme. When the code phase offset normalized to the chip duration between two sequences is within the advancing step size, the sum of two successive matched filter outputs has a constant value regardless of the residual code phase offset when the noise is absent. Based on this observation, we propose a new code acquisition scheme and investigate the performance of the scheme. The proposed code acquisition scheme is analyzed in an additive white Gaussian noise and multiple-access interference environment. Finally, numerical results are given to show that the proposed scheme is more robust to the variation of the residual code phase offset and has better performance than the conventional scheme on average KW - acquisition KW - cdma KW - code KW - phase AU - Yoon, Seokho AU - Song, Iickho AU - Kim, Sun AU - Park, So PY - 2000/// UR - http://dx.doi.org/10.1109/25.901909 ER -