DFT-based channel estimation for OFDM system and comparison with LS and MMSE over Rayleigh and Rician fading channel
Journal Title: INTERNATIONAL JOURNAL OF ENGINEERING TRENDS AND TECHNOLOGY - Year 2013, Vol 4, Issue 9
Abstract
Orthogonal Frequency Division multiplexing is a high data rate transmission scheme for wireless communication systems. The received signal is not only coming directly from the transmitter, but the combination of multipath components of transmitted signal. One of the most intriguing aspects in wireless communication is fading which is present when there are multipath components. To cancel the effect of fading, channel estimation is required at the receiving end. In this paper a DFT-based channel estimation approach is simulated and comparing with conventional channel estimation techniques, Least Square (LS) and Minimum Mean Square Error (MMSE) over Rayleigh and Rician fading Channel. The simulation results show that DFT based channel estimation technique reduces the Mean Square Error (MSE) and the performance of DFT-based is better than LS and MMSE.
Authors and Affiliations
Jeevan Singh Parmar, Gaurav Gupta
Keywords
Related Articles
- EP ID EP136159
- DOI -
- Views 92
- Downloads 0
Stability of Voltage using Different Control strategies In Isolated Self Excited Induction Generator for Variable Speed Applications
In this paper analysis of the operation of a standalone self-excited induction generator and its control of voltage and frequency for variable speed applications has been made. The limitation of standalone wind ene...
Fingerprint Based Gender Classification Using 2D Discrete Wavelet Transforms and Principal Component Analysis
Fingerprint evidence is undoubtedly the most reliable and acceptable evidence till date in the court of law. Fingerprints are obtained at the site of crime and in many old monuments and in excavated things. Estimat...
A Survey on an Efficient Technique of Encryption Scheme and its Extension in Cloud Based PHR System
Scalable and secure sharing of personal health record in cloud computing is an emerging trend in Health field for exchange and the use of personal Health information. This sensitive data is shared and stored by the third...
A Real Time Embedded Finger Vein Recognition System for Authentication on Mobile Devices
In this project, we propose a real-time embedded finger-vein recognition system (FVRS) for authentication on mobile devices. The system is implemented on an embedded platform and equipped with a novel finger-vein recogni...
Link and Location Based Routing Mechanism for Energy Efficiency in Wireless Sensor Networks
In Wireless Sensor Networks, sensed data are reported to the sink by the available nodes in the communication range. The sensed data should be reported to the sink with the frequency expected by the sink. In order to hav...