Abstract
In this paper, we propose a fast cell search algorithm compatible with the standard cell search algorithm of the WCDMA system The proposed algorithm can acquire the synchronization of slot and frame times, and the code group identification using only one synchronization channel while the standard algorithm employs two synchronization channels called P-SCH and S-SCH. The proposed synchronization channel structure is the same as the P-SCH structure of the WCDMA system. However, the P-SCH is modulated with a specific polarization code, which is one element of new code group codes. The proposed algorithm can reduce both the BS transmission power and the complexity of the receiver as compared with the conventional one since only one synchronization channel is used. It is shown through computer simulation that the proposed algorithm yields a significant improvement in terms of cell search time compared with the standard especially in low SNR environments.
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