Analytical Correlation of Spreading Sequences for Nonlinear OQPSK-Type Modulations

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

Abstract

The correlation properties of some spreading sequences when applied to a system using nonlinear OQPSK-type signals is the main focus of this paper. These signals include, as special cases, CPM schemes (Continuous-Phase Modulation), which can be designed to have very low envelope fluctuations or even a constant envelope, making them compatible with a very low cost and power efficient grossly nonlinear amplification. We use an analytical method to derive both the autocorrelation and the cross-correlation of those signals. The resulting expressions are then applied to Gold Codes, Maximum-Length Sequences (MLS) and TCH (Tomlinson, Cercas, Hughes) sequences. It is shown that TCH sequences have better autocorrelation and cross-correlation properties than the other spreading sequences.
Original languageUnknown
Title of host publicationIEEE Vehicular Technology Conference
Pages1 - 5
DOIs
Publication statusPublished - 1 Jan 2011
Event73rd IEEE Vehicular Technology Conference (VTC Spring) -
Duration: 1 Jan 2011 → …

Conference

Conference73rd IEEE Vehicular Technology Conference (VTC Spring)
Period1/01/11 → …

Cite this

@inproceedings{527e08553c6244c7869d3c6970b5b480,
title = "Analytical Correlation of Spreading Sequences for Nonlinear OQPSK-Type Modulations",
abstract = "The correlation properties of some spreading sequences when applied to a system using nonlinear OQPSK-type signals is the main focus of this paper. These signals include, as special cases, CPM schemes (Continuous-Phase Modulation), which can be designed to have very low envelope fluctuations or even a constant envelope, making them compatible with a very low cost and power efficient grossly nonlinear amplification. We use an analytical method to derive both the autocorrelation and the cross-correlation of those signals. The resulting expressions are then applied to Gold Codes, Maximum-Length Sequences (MLS) and TCH (Tomlinson, Cercas, Hughes) sequences. It is shown that TCH sequences have better autocorrelation and cross-correlation properties than the other spreading sequences.",
author = "Dinis, {Rui Miguel Henriques Dias Morgado} and {DEE Group Author}",
year = "2011",
month = "1",
day = "1",
doi = "10.1109/VETECS.2011.5956206",
language = "Unknown",
pages = "1 -- 5",
booktitle = "IEEE Vehicular Technology Conference",

}

Dinis, RMHDM & DEE Group Author 2011, Analytical Correlation of Spreading Sequences for Nonlinear OQPSK-Type Modulations. in IEEE Vehicular Technology Conference. pp. 1 - 5, 73rd IEEE Vehicular Technology Conference (VTC Spring), 1/01/11. https://doi.org/10.1109/VETECS.2011.5956206

Analytical Correlation of Spreading Sequences for Nonlinear OQPSK-Type Modulations. / Dinis, Rui Miguel Henriques Dias Morgado; DEE Group Author.

IEEE Vehicular Technology Conference. 2011. p. 1 - 5.

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

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N2 - The correlation properties of some spreading sequences when applied to a system using nonlinear OQPSK-type signals is the main focus of this paper. These signals include, as special cases, CPM schemes (Continuous-Phase Modulation), which can be designed to have very low envelope fluctuations or even a constant envelope, making them compatible with a very low cost and power efficient grossly nonlinear amplification. We use an analytical method to derive both the autocorrelation and the cross-correlation of those signals. The resulting expressions are then applied to Gold Codes, Maximum-Length Sequences (MLS) and TCH (Tomlinson, Cercas, Hughes) sequences. It is shown that TCH sequences have better autocorrelation and cross-correlation properties than the other spreading sequences.

AB - The correlation properties of some spreading sequences when applied to a system using nonlinear OQPSK-type signals is the main focus of this paper. These signals include, as special cases, CPM schemes (Continuous-Phase Modulation), which can be designed to have very low envelope fluctuations or even a constant envelope, making them compatible with a very low cost and power efficient grossly nonlinear amplification. We use an analytical method to derive both the autocorrelation and the cross-correlation of those signals. The resulting expressions are then applied to Gold Codes, Maximum-Length Sequences (MLS) and TCH (Tomlinson, Cercas, Hughes) sequences. It is shown that TCH sequences have better autocorrelation and cross-correlation properties than the other spreading sequences.

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