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 language | Unknown |
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| Title of host publication | IEEE Vehicular Technology Conference |
| Pages | 1 - 5 |
| DOIs | |
| Publication status | Published - 1 Jan 2011 |
| Event | 73rd IEEE Vehicular Technology Conference (VTC Spring) - Duration: 1 Jan 2011 → … |
Conference
| Conference | 73rd IEEE Vehicular Technology Conference (VTC Spring) |
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| Period | 1/01/11 → … |
Cite this
Dinis, R. M. H. D. M., & DEE Group Author (2011). Analytical Correlation of Spreading Sequences for Nonlinear OQPSK-Type Modulations. In IEEE Vehicular Technology Conference (pp. 1 - 5) https://doi.org/10.1109/VETECS.2011.5956206