Sequence design for cognitive CDMA communications under arbitrary spectrum hole constraint
To support interference-free quasi-synchronous code-division multiple-access (QS-CDMA) communication with low spectral density profile in a cognitive radio (CR) network, it is desirable to design a set of CDMA spreading sequences with zero-correlation zone (ZCZ) property. However, traditional ZCZ...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2015
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| Online Access: | https://hdl.handle.net/10356/107463 http://hdl.handle.net/10220/25488 http://dx.doi.org/10.1109/JSAC.2014.141103 |
| _version_ | 1811681105769660416 |
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| author | Hu, Su Liu, Zilong Guan, Yong Liang Xiong, Wenhui Bi, Guoan Li, Shaoqian |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Hu, Su Liu, Zilong Guan, Yong Liang Xiong, Wenhui Bi, Guoan Li, Shaoqian |
| author_sort | Hu, Su |
| collection | NTU |
| description | To support interference-free quasi-synchronous code-division multiple-access (QS-CDMA) communication with
low spectral density profile in a cognitive radio (CR) network, it is desirable to design a set of CDMA spreading
sequences with zero-correlation zone (ZCZ) property. However, traditional ZCZ sequences (which assume the availability
of the entire spectral band) cannot be used because their orthogonality will be destroyed by the spectrum hole
constraint in a CR channel. To date, analytical construction of ZCZ CR sequences remains open. Taking advantage of
the Kronecker sequence property, a novel family of sequences (called “quasi-ZCZ” CR sequences) which displays
zero cross-correlation and near-zero auto-correlation zone property under arbitrary spectrum hole constraint is
presented in this paper. Furthermore, a novel algorithm is proposed to jointly optimize the peak-to-average power
ratio (PAPR) and the periodic auto-correlations of the proposed quasi-ZCZ CR sequences. Simulations show that
they give rise to single-user bit-error-rate performance in CR-CDMA systems which outperform traditional noncontiguous
multicarrier CDMA and transform domain communication systems; they also lead to CR-CDMA systems
which are more resilient than non-contiguous OFDM systems to spectrum sensing mismatch, due to the wideband
spreading. |
| first_indexed | 2024-10-01T03:35:40Z |
| format | Journal Article |
| id | ntu-10356/107463 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:35:40Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1074632019-12-06T22:31:46Z Sequence design for cognitive CDMA communications under arbitrary spectrum hole constraint Hu, Su Liu, Zilong Guan, Yong Liang Xiong, Wenhui Bi, Guoan Li, Shaoqian School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems To support interference-free quasi-synchronous code-division multiple-access (QS-CDMA) communication with low spectral density profile in a cognitive radio (CR) network, it is desirable to design a set of CDMA spreading sequences with zero-correlation zone (ZCZ) property. However, traditional ZCZ sequences (which assume the availability of the entire spectral band) cannot be used because their orthogonality will be destroyed by the spectrum hole constraint in a CR channel. To date, analytical construction of ZCZ CR sequences remains open. Taking advantage of the Kronecker sequence property, a novel family of sequences (called “quasi-ZCZ” CR sequences) which displays zero cross-correlation and near-zero auto-correlation zone property under arbitrary spectrum hole constraint is presented in this paper. Furthermore, a novel algorithm is proposed to jointly optimize the peak-to-average power ratio (PAPR) and the periodic auto-correlations of the proposed quasi-ZCZ CR sequences. Simulations show that they give rise to single-user bit-error-rate performance in CR-CDMA systems which outperform traditional noncontiguous multicarrier CDMA and transform domain communication systems; they also lead to CR-CDMA systems which are more resilient than non-contiguous OFDM systems to spectrum sensing mismatch, due to the wideband spreading. Accepted version 2015-05-11T03:33:45Z 2019-12-06T22:31:46Z 2015-05-11T03:33:45Z 2019-12-06T22:31:46Z 2014 2014 Journal Article Hu, S., Liu, Z., Guan, Y. L., Xiong, W., Bi, G., & Li, S. (2014). Sequence design for cognitive CDMA communications under arbitrary spectrum hole constraint. IEEE journal on selected areas in communications, 32(11), 1974-1986. 0733-8716 https://hdl.handle.net/10356/107463 http://hdl.handle.net/10220/25488 http://dx.doi.org/10.1109/JSAC.2014.141103 en IEEE journal on selected areas in communications © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [Article DOI: http://dx.doi.org/10.1109/JSAC.2014.141103]. 19 p . application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems Hu, Su Liu, Zilong Guan, Yong Liang Xiong, Wenhui Bi, Guoan Li, Shaoqian Sequence design for cognitive CDMA communications under arbitrary spectrum hole constraint |
| title | Sequence design for cognitive CDMA communications under arbitrary spectrum hole constraint |
| title_full | Sequence design for cognitive CDMA communications under arbitrary spectrum hole constraint |
| title_fullStr | Sequence design for cognitive CDMA communications under arbitrary spectrum hole constraint |
| title_full_unstemmed | Sequence design for cognitive CDMA communications under arbitrary spectrum hole constraint |
| title_short | Sequence design for cognitive CDMA communications under arbitrary spectrum hole constraint |
| title_sort | sequence design for cognitive cdma communications under arbitrary spectrum hole constraint |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems |
| url | https://hdl.handle.net/10356/107463 http://hdl.handle.net/10220/25488 http://dx.doi.org/10.1109/JSAC.2014.141103 |
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