| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 446877 | AEU - International Journal of Electronics and Communications | 2009 | 5 Pages |
Abstract
In the following paper we propose a new approach for extracting soft values from Mth order pulse position modulation (M-PPM). A new low-complexity algorithm is developed, where soft information for each data bit is calculated based on the power received within the PPM time slots. In order to decrease the computational complexity we simplify the calculation of the conditional probability of data vector a given that PPM symbol Y is received. The Monte Carlo simulations applied to analyze the properties of the algorithm for turbo-coded M-PPM transmission in free space optic communication systems show acceptable degradation of system performance with regard to system simplification.
Keywords
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Tomaž Javornik, Igor Jelovčan, S. Sheikh Muhammad, Gorazd Kandus,