Constellation choosing based on multi-dimensional sphere packing technique
| Autor: | Enock Kashero, Hu Guijun, Li Zhaoxi, Li Jinghe |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
business.industry
Threshold limit value 02 engineering and technology Signal Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 020210 optoelectronics & photonics Sphere packing Optics Modulation 0202 electrical engineering electronic engineering information engineering Multi dimensional Electrical and Electronic Engineering Physical and Theoretical Chemistry Telecommunications business Algorithm Selection (genetic algorithm) Modulation error ratio Computer Science::Information Theory Constellation Mathematics |
| Zdroj: | Optics Communications. 375:49-53 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2016.04.066 |
| Popis: | In this paper we address the sphere packing lattice points selection problem being used as constellation points in high-dimensional modulation. We propose a new type of points selection method based on threshold theory. Theoretically, this method improves the transmission performance of high-dimensional signal modulation systems. We find that the BER of a 4D modulation signal using the threshold value points selection method reduces. We also compared random and distant points selection methods in a BER of 10−3 and obtained a reduced SNR of about 2 db. At a 10−3 BER, a 8D modulation signal with points selected using the threshold selection methods obtained a reduced SNR of about 3 db. At a 10−3 BER, a 16D modulation signal with points selected using the threshold selection methods obtained a reduced SNR of about 3.5 db. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect