Forward link intracell orthogonalization technique using multicarrier pre-decorrelation for CDMA wireless local communication system

Hideyuki Matsutani, Yukitoshi Sanada, Masao Nakagawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this paper a new intracell orthogonalization technique for a code division multiple access (CDMA) wireless local communication system is proposed. On the forward link of the system, it is necessary to achieve high bit rate transmission and to reduce the complexity of the receiving terminal. To meet these two requirements, cyclically shifted spreading sequences are utilized. However it is necessary to orthogonalize the multiple signals since these sequences are cross-correlated. One way of achieving orthogonalization is pre-decorrelation. However, the orthogonality does not clearly appear in a multipath fading channel because of the interchip interference caused by multipath. Therefore in this paper, pre-decorrelation is combined with multicarrier modulation. The results obtained through computer simulation show that the proposed technique can achieve orthogonality in a multipath fading channel. Also the proposed technique makes efficient forward link power control possible, and reduces intercell interference.

Original languageEnglish
Title of host publicationIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
PublisherIEEE
Pages125-129
Number of pages5
Volume1
Publication statusPublished - 1997
EventProceedings of the 1997 International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'97. Part 1 (of 3) - Helsinki, Finl
Duration: 1997 Sep 11997 Sep 4

Other

OtherProceedings of the 1997 International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'97. Part 1 (of 3)
CityHelsinki, Finl
Period97/9/197/9/4

Fingerprint

Multipath fading
Fading channels
Code division multiple access
Communication systems
Multicarrier modulation
Power control
Computer simulation

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Matsutani, H., Sanada, Y., & Nakagawa, M. (1997). Forward link intracell orthogonalization technique using multicarrier pre-decorrelation for CDMA wireless local communication system. In IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC (Vol. 1, pp. 125-129). IEEE.

Forward link intracell orthogonalization technique using multicarrier pre-decorrelation for CDMA wireless local communication system. / Matsutani, Hideyuki; Sanada, Yukitoshi; Nakagawa, Masao.

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. Vol. 1 IEEE, 1997. p. 125-129.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Matsutani, H, Sanada, Y & Nakagawa, M 1997, Forward link intracell orthogonalization technique using multicarrier pre-decorrelation for CDMA wireless local communication system. in IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. vol. 1, IEEE, pp. 125-129, Proceedings of the 1997 International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'97. Part 1 (of 3), Helsinki, Finl, 97/9/1.
Matsutani H, Sanada Y, Nakagawa M. Forward link intracell orthogonalization technique using multicarrier pre-decorrelation for CDMA wireless local communication system. In IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. Vol. 1. IEEE. 1997. p. 125-129
Matsutani, Hideyuki ; Sanada, Yukitoshi ; Nakagawa, Masao. / Forward link intracell orthogonalization technique using multicarrier pre-decorrelation for CDMA wireless local communication system. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. Vol. 1 IEEE, 1997. pp. 125-129
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