A comparative study of pulse shaping functions for ICI power reduction in OFDM system

Author

Mohanty, Sanjay ; Das, Susmita

Author_Institution

Dept. of Electr. Eng., Nat. Inst. of Technol., Rourkela

Volume

2

fYear

2008

fDate

11-13 Dec. 2008

Firstpage

312

Lastpage

316

Abstract

For orthogonal frequency-division multiplexing (OFDM) communication systems, the frequency offsets in mobile radio channels distort the orthogonality between subcarriers resulting in intercarrier interference (ICI). In this paper, pulse shaping technique for ICI power reduction in OFDM systems are investigated. A number of pulse shaping functions such as rectangular pulse (REC), raised cosine pulse (RC), Better then raised cosine pulse (BTRC), Sinc power pulse (SP) and Improved sine power pulse (ISP) have been considered for ICI power reduction. The performance of each pulse shaping function is evaluated and compared with each other using the parameters such as ICI power, SIR (Signal to Interference Ratio) and BER (Bit Error Rate). It is observed from simulation results that ISP pulse shapes outperform the conventional pulse shaping functions in ICI power reduction remarkably.

Keywords

OFDM modulation; intercarrier interference; mobile radio; pulse shaping; wireless channels; ICI power reduction; OFDM system; intercarrier interference; mobile radio channels; orthogonal frequency-division multiplexing communication system; pulse shaping functions; Bit error rate; Digital multimedia broadcasting; Digital video broadcasting; Fading; Interference; Multimedia systems; OFDM; Power system reliability; Pulse shaping methods; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

India Conference, 2008. INDICON 2008. Annual IEEE

Conference_Location

Kanpur

Print_ISBN

978-1-4244-3825-9

Electronic_ISBN

978-1-4244-2747-5

Type

conf

DOI

10.1109/INDCON.2008.4768741

Filename

4768741