Browsing by Author "Lin, Yu-Nan"

Now showing 1 - 1 of 1

Multicode chip-interleaved DS-CDMA to effect synchronous correlation of spreading codes in quasi-synchronous transmission over multipath channels
(2006-10-01)
Lin, Yu-Nan
;
Lin, David W.
;
電子工程學系及電子研究所
;
電信研究中心
;
Department of Electronics Engineering and Institute of Electronics
The performance of conventional DS-CDMA systems is greatly affected by asynchronous or multipath propagation. We show that, with a certain way of multicode assignment, chip-interleaved DS-CDMA (CIDS-CDMA) can perform better in such a condition thanks to its ability to preserve the synchronous correlations among the spreading codes. Compared to the recently proposed chip-interleaved block-spread CDMA (CIBS-CDMA) that requires a single-user equalizer, the presented scheme can attain better or comparable performance in channel-coded transmission with a rake receiver that has lower complexity.