Title :
A Novel Effective ICI Self-Cancellation Method
Author :
Wen, Miao-Wen ; Cheng, Xiang ; Wei, Xing ; Ai, Bo ; Jiao, Bing-Li
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Peking Univ., Beijing, China
Abstract :
Orthogonal Frequency Division Multiplexing (OFDM) systems may suffer from both carrier frequency offset (CFO) and in-phase/quadrature-phase (I/Q) imbalance at the receiver front end. In this paper, a novel type of intercarrier interference (ICI) self-cancellation method using mirror mapping is proposed to combat these impairment. Based on the proposed novel method and by adopting two widely used mapping operations, we altogether derive two different mirror mapping schemes. Analysis and simulation results verify that the proposed mirror mapping schemes not only inherit the efficiency of the existing self-cancellation schemes in suppressing ICI caused by CFO but also have the ability of compressing or even eliminating IQ imbalance.
Keywords :
OFDM modulation; intercarrier interference; interference suppression; ICI suppression; OFDM systems; carrier frequency offset; in-phase-quadrature-phase imbalance; intercarrier interference self-cancellation method; mirror mapping schemes; orthogonal frequency division multiplexing; receiver front end; Bit error rate; Educational institutions; Mirrors; Modulation; OFDM; Receivers; Strontium;
Conference_Titel :
Global Telecommunications Conference (GLOBECOM 2011), 2011 IEEE
Conference_Location :
Houston, TX, USA
Print_ISBN :
978-1-4244-9266-4
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2011.6133714