Multi Binary Turbo Coded WOFDM Performance in Flat Rayleigh Fading Channels
Journal Title: Acta Technica Napocensis- Electronica-Telecomunicatii (Electronics and Telecommunications) - Year 2008, Vol 49, Issue 3
Abstract
In this paper, the application of Multi Binary Turbo Codes (MBTCs) to two multicarrier modulation techniques used for transmission in the flat radio fading channel is studied. Thus, the performance of the coded versions of Orthogonal Frequency Division Multiplexing (OFDM) and of its wavelets based version (WOFDM) is evaluated under several simulation scenarios. These scenarios take into account the time variability of the radio channel, by the mean of the Doppler shift parameter. An important conclusion is that, under the assumptions made in this paper, WOFDM outperforms OFDM. By the other hand, this technique shows little influence on the choice of the wavelets mother used in the modulator.
Authors and Affiliations
Marius OLTEAN, Maria KOVACI, Horia BALTA, Andrei CAMPEANU
LOW-Cost Prototype Equipment For VLF Radio Wave Monitoring
The paper presents a short overview of the natural phenomena that generates VLF, ELF and SLF electromagnetic waves. In order to emphasize the importance of studying these waves, the paper presents a prototype equipment u...
Analysing the Stability of Circuits Based on Operational Amplifiers by Using Frequency-Domain Simulations
This paper analyzes in detail two of the most popular methods of determining the loop gain of OpAmp-based feedback circuits through frequency-domain Spice simulations. The limitations of the simpler method – that involve...
Acoustic Analysis of a Room
The paper presents the acoustic analysis of a room using both software and hardware tools. First several methods for acoustic parameters estimation were tested. The most accurate measurements were used for building 3D im...
A Neural Network Implementation On FPGA For Ecological Monitoring
In this paper, we present an implementation of an artificial neural network (ANN) for predicting blooms (coloured waters) of a species of toxic phytoplankton called Dinophysis acumunata that prevalent in coastal of Havr...
Personalized Security Mechanism for Mobile Cloud Applications
Mobile Cloud Computing is a model that brings several advantages to the applications developed for mobile devices. In this paper, we focus on securing data used and processed by component-based mobile cloud applications....