A Review on wavelet transform as a substitute to cyclic prefix removal in FFT in OFDM
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 3, Issue 2
Abstract
The performance and versatility of wireless communication effected by allocated spectrum for communication. The utility of spectrum depends on modulation technique and allocation process. In conventional OFDM modulation technique uses cyclic prefix (guard band) for prevention of interference in carrier signal. From that process waste some valuable bandwidth using cyclic prefix. Now in these day wavelet transform function replace FFT process for removal of cyclic prefix and improve the efficiency of bandwidth. Wavelet transform work in two different modes one is details (high filter) and another one is approximation (lower filter). The combination of low filter and high filter in form of wavelet transform and remove the cyclic prefix in OFDM modulation system. In this paper, we study of wavelet transform function such as DCT, WPT and IWPT instead of FFT.
Authors and Affiliations
Mr. Abhishek Gupta*1,
Keywords
Related Articles
- EP ID EP111712
- DOI -
- Views 78
- Downloads 0
Synthesis of Novel Methylene Bis
A novel series of methylene-bis (5-[7-(4-amino-5-sulfanyl-4H-1,2,4-triazoles 1,2,4-triazole-3-thiol and corresponding aryl isothiocyanate.All the synthesized compounds have been tesed for their antibacerial acti...
Study about Remote Sensing, Its Process, Types, Applications and Advantages
Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object. . In modern usage, the term generally refers to the use of aerial sensor technologies...
STUDY OF THE VARIATIONS OF THE MACROSCOPIC ELECTRIC PARAMETERS OF A SOLAR CELL ACCORDING TO THE USE TEMPERATURE
The Research has for objective to increase the performances of the thin film solar cells. Many scientific publications were interested by the development of the thin films which make the cell. Others based their r...
Effect of Fly Ash on Fresh and Hardened Properties of Self Compacting Concrete
Self-compacting concrete (SCC) is one of the High Performance Concrète with excellent strength and durability properties. However, its mix proportioning and testing methods for flow characteristics are different f...
GSM Based Wireless Technology for Oilfield Security Management System
Security Management at the industries mainly during the night times at the oil field is the difficult task for security people. Checking for power failure, oil theft, temperature range, tilt of the tank leakage of oil d...