Kavitha K-V-N-

Department of Communication Engineering

School of Electronics Engineering

Vellore Campus

K. Vinoth Babu

K. Murali Babu

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

International Journal of Computer Theory and Engineering

OFDM based wireless system provides high spectral efficiency but they are very sensitive to Doppler shift. High mobility causes the channel to be fast fading channel. The rapid variation of the channel can induce Inter Carrier Interference (ICI). ICI due to carrier frequency offset can be mitigated by accurate frequency synchronization but ICI due to fast fading channel is more difficult to handle. Thus ICI reduces the throughput and increases the BER. In this paper we proposed an OFDM system which will use Variable Sub carrier Bandwidth (VSB) with Variable Bit Loading (VBL) to minimize the effect of ICI due to high mobility. We investigate the performance of such VSB-VBL OFDM system with Fixed Sub carrier Bandwidth (FSB-OFDM) system based on Signal Interference to Noise Ratio (SINR). © 2009 IEEE.

2009 International Conference on Advances in Recent Technologies in Communication and Computing

SINR Improvement in OFDM Systems Using VSB-VBL Technique for High Mobility Applications

Low -Complex ICI Reduction Due to Channel Estimation Error in OFDM Systems Using VSB-VBL Technique for High Mobility Applications

Journal	International Journal of Computer Theory and Engineering
Publisher	IACSIT Press
ISSN	1793-8201
Open Access	0