Title :
A Suppression Scheme of the ICI caused by Phase Noise based on Partial Response Signaling in OFDM Systems
Author :
Kim, Kyung-Hwa ; Kim, Hyung-Myung
Author_Institution :
Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon
Abstract :
Phase noise destroys the orthogonality between sub-carriers in orthogonal frequency division multiplexing (OFDM) systems and creates intercarrier interference (ICI), which results in performance degradation. In this paper, partial response signaling (PRS) is used to reduce the effect of ICI caused by phase noise. The expression of ICI power with PRS is derived and the optimum PRS coefficients that minimize the ICI power are obtained. The simulation results show that the optimum PRS for OFDM systems obviously reduce the ICI power without decreasing the bandwidth efficiency
Keywords :
OFDM modulation; adjacent channel interference; interference suppression; partial response channels; phase noise; telecommunication signalling; ICI suppression; OFDM; PRS; intercarrier interference; orthogonal frequency division multiplexing system; partial response signaling; phase noise; Bandwidth; Degradation; Digital modulation; Digital video broadcasting; Interference; OFDM; Partial response signaling; Phase noise; Power system modeling; Telephony;
Conference_Titel :
Information, Communications and Signal Processing, 2005 Fifth International Conference on
Conference_Location :
Bangkok
Print_ISBN :
0-7803-9283-3
DOI :
10.1109/ICICS.2005.1689045
