OFDM SYSTEMS BASED ON INTER CARRIER INTERFERENCE WITH ASB

  • Ravi Raman ANNA UNIVERSITY, CHENNAI

Abstract

In this paper Orthogonal frequency division multiplexing based wireless systems are spectrally efficient and it is being increasingly used in high data rate wireless communication systems, but they are vulnerable to inter carrier interference (ICI). The signal strength varies due to different individual path loss and also due to different amount of Doppler spread because of their independent velocities. Therefore, the ICI among to combat ICI are towards using synchronization and interference cancellation. In this paper we use adaptive sub carrier bandwidth(ASB) along with adaptive bit loading to mitigate ICI in such conditions, which will keep receiver design very simple and it keeps maximum throughput and minimum BER in each situation. Results show that ASB can provide higher throughput than fixed sub carrier bandwidth.

Author Biography

Ravi Raman, ANNA UNIVERSITY, CHENNAI

PROFESSOR

DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING

References

[1] Uma Shankar jha,Ramjee Prasad.,OFDM towards Fixed and Mobile Broadband Wireless access,pp.29-59,Artech House Universal Personal Communications.,2007

[2] S. S. Das et al., “Performance Analysis of OFDM with Adaptive Sub Carrier Bandwidth ”in Proc. IEEE ICC 2008, vol. 7,NO.4, APRIL2008, pp. 1117-1122

[3] T.Pollet, V. M. Bladel, and M. Moeneclaey, “BER sensitivity of OFDM systems to carrier frequency offset and Wiener phase noise,” IEEE Trans.Commun., vol. 43, no. 2/3/4, pp. 191–193, Feb./Mar./Apr. 1995
.[4] S. T. Chung and A. J. Goldsmith, “Degrees of freedom in adaptive modulation: a unified view,” IEEE Trans. Commun., vol. 49, no. 1, pp.1561–1571, Sept. 2001.
Statistics
272 Views | 242 Downloads
How to Cite
Raman, R. (2013). OFDM SYSTEMS BASED ON INTER CARRIER INTERFERENCE WITH ASB. Innovare Journal of Engineering & Technology, 1(2), 5-9. Retrieved from https://innovareacademics.in/journals/index.php/ijet/article/view/630