Title :
An ICI Suppression Scheme Based on the Correlative Coding for Alamouti SFBC-OFDM System with Phase Noise
Author :
Kyung Hwa ; Kim, Kyung-Hwa
Author_Institution :
Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
fDate :
7/1/2011 12:00:00 AM
Abstract :
Use of the space-frequency block coded orthogonal frequency division multiplexing (SFBC-OFDM) is advantageous in high-mobility broadband wireless system but it is sensitive to the intercarrier interference (ICI) caused by phase noise (PHN). In this letter, the effect of PHN for Alamouti SFBC-OFDM system is analyzed and correlative coding (CC) is used to reduce ICI. Based on the expression of the ICI power for the Alamouti SFBC-OFDM system with CC, the optimal CC coefficients that minimize the ICI power are obtained. Numerical results show that optimum CC can effectively increase the carrier-to-interference ratio (CIR) and improve the bit error rate (BER) performance.
Keywords :
OFDM modulation; block codes; error statistics; intercarrier interference; interference suppression; phase noise; Alamouti SFBC-OFDM system; BER; bit error rate performance; carrier-to-interference ratio; correlative coding; high-mobility broadband wireless system; intercarrier interference suppression scheme; phase noise; space-frequency block coded orthogonal frequency division multiplexing; Bandwidth; Bit error rate; Broadband communication; Encoding; OFDM; Phase noise; Wireless communication; SFBC-OFDM; correlative coding (CC); intercarrier interference (ICI); phase noise (PHN);
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2011.042211.100012
