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https://scholarbank.nus.edu.sg/handle/10635/71411
DC Field | Value | |
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dc.title | Performance of a new multi-carrier DS-CDMA system with multi-code over Nakagami fading channel | |
dc.contributor.author | Cao, Y.W. | |
dc.contributor.author | Ko, C.C. | |
dc.contributor.author | Tjhung, T.T. | |
dc.date.accessioned | 2014-06-19T03:23:26Z | |
dc.date.available | 2014-06-19T03:23:26Z | |
dc.date.issued | 2002 | |
dc.identifier.citation | Cao, Y.W.,Ko, C.C.,Tjhung, T.T. (2002). Performance of a new multi-carrier DS-CDMA system with multi-code over Nakagami fading channel. IEEE International Conference on Communications 3 : 1773-1777. ScholarBank@NUS Repository. | |
dc.identifier.issn | 05361486 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/71411 | |
dc.description.abstract | In this paper, a new multi-carrier, direct sequence code division multiple access (MC-DS-CDMA) system with multi-code is proposed. Transmitted data are first serial-to-parallel converted to D parallel data streams and a pre-coding with a rate of D/M is followed. Next, these pre-coded parallel streams are multiplexed by an inverse Walsh-Hadamard transform (IWHT) (M × M) and M super-bit streams are formed. Due to using the pre-coding, the super-bit streams will be two-level symbol streams. Then, the super-bits are once more serial-to-parallel converted to form M parallel super-bit sub-streams. Finally, all the M parallel super-bit streams are direct sequence spread spectrum (DS-SS) modulated and transmitted using M orthogonal carriers. In the receiver, after demodulation and WHT operation, the strategy of minimum mean square error (MMSE) is used for detection. Based on a correlator receiver for each carrier, its upper bound of bit error rate (BER) performance over Nakagami fading channel is analyzed. Numerical results are compared with those of a singe carrier DS-CDMA system (SC-DS-CDMA). It is shown that the proposed MC-DS-CDMA scheme has much better BER performance compared to the SC-DS-CDMA system. | |
dc.source | Scopus | |
dc.type | Conference Paper | |
dc.contributor.department | ELECTRICAL & COMPUTER ENGINEERING | |
dc.contributor.department | INSTITUTE FOR COMMUNICATIONS RESEARCH | |
dc.description.sourcetitle | IEEE International Conference on Communications | |
dc.description.volume | 3 | |
dc.description.page | 1773-1777 | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Staff Publications |
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