Please use this identifier to cite or link to this item:
http://hdl.handle.net/11144/3728
Title: | Analytical computation of the correlation of spreading sequences for nonlinear OQPSK-type modulations |
Authors: | Dinis, Rui Afonso, Daniel Cercas, Francisco Rodrigues, Rui Luz, Ângelo |
Keywords: | PN sequences Nonlinear modulations Correlation behavior |
Issue Date: | 2012 |
Publisher: | ETT |
Abstract: | In this paper we study the behavior and correlation properties of some spreading sequences when applied to a system using nonlinear offset quadrature phase-shift keying-type modulations. These signals, which include as special cases continuousphase modulation schemes, 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 the correlation of those signals. The resulting expressions are then applied to maximum-length sequences, Kasami, and Tomlinson, Cercas, Hughes sequences. It is shown that Tomlinson, Cercas, Hughes sequences have better correlation properties than other spreading sequences. |
Peer Reviewed: | yes |
URI: | http://hdl.handle.net/11144/3728 |
metadata.dc.identifier.doi: | 10.1002/ett.2524 |
ISSN: | 1124-318X |
Publisher Version: | https://www.it.pt/Publications/PaperJournal/7038 |
Appears in Collections: | DCT - Artigos/Papers |
Files in This Item:
File | Description | Size | Format | |
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Analytical computation of the correlati...es for nonlinear OQPSKtype modulations.pdf | 117,85 kB | Adobe PDF | View/Open |
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