Intercarrier interference self-cancellation scheme for OFDM mobile   communication systems

doi:10.1109/26.935159

CORC > 北京大学 > 信息科学技术学院

	Intercarrier interference self-cancellation scheme for OFDM mobile communication systems
	Zhao, YP ; Haggman, SG
刊名	ieee transactions on communications
	2001
关键词	ICI self-cancellation intercarrier interference multicarrier modulation OFDM FREQUENCY OFFSET
DOI	10.1109/26.935159
英文摘要	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), This paper studies an efficient ICI cancellation method termed ICI self-cancellation scheme. The scheme works in two very simple steps. At the transmitter side, one data symbol is modulated onto a group of adjacent subcarriers with a group of weighting coefficients. The weighting coefficients are designed so that the ICI caused by the channel frequency errors can be minimized. At the receiver side, by linearly combining the received signals on these subcarriers with proposed coefficients, the residual ICI contained in the received signals can then be further reduced. The carrier-to-interference power ratio (CIR) can be increased by 15 and 30 dB when the group size is two or three, respectively, for a channel with a constant frequency offset. Although the redundant modulation causes a reduction in bandwidth efficiency, it can be compensated, for example, by using larger signal alphabet sizes. Simulations show that OFDM systems using the proposed ICI self-cancellation scheme perform much better than standard systems while having the same bandwidth efficiency in multipath mobile radio channels with large Doppler frequencies.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000169910800012&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Electrical & Electronic; Telecommunications; SCI(E); EI; 367; ARTICLE; 7; 1185-1191; 49
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/152428]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhao, YP,Haggman, SG. Intercarrier interference self-cancellation scheme for OFDM mobile communication systems[J]. ieee transactions on communications,2001.
APA	Zhao, YP,&Haggman, SG.(2001).Intercarrier interference self-cancellation scheme for OFDM mobile communication systems.ieee transactions on communications.
MLA	Zhao, YP,et al."Intercarrier interference self-cancellation scheme for OFDM mobile communication systems".ieee transactions on communications (2001).