A successive interference cancellation scheme for an OFDM system

被引：0
|
作者：
Leung, E [1 ]
Ho, P [1 ]
机构：
[1] Simon Fraser Univ, Sch Engn Sci, Burnaby, BC V5A 1S6, Canada
来源：
ICC 98 - 1998 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS VOLS 1-3 | 1998年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper we will consider an Orthogonal Frequency Division Multiplexing (OFDM) system with successive interference cancellation to reduce interchannel interference. The system operates in a Rayleigh frequency selective channel and pilot symbols are inserted in each OFDM frame for the purpose of channel estimation. Interchannel interference (ICI) is caused by the time variations in channel gain within one OFDM frame. The ICI leads to an error floor, which is a function of the Doppler frequency. In this study, it was found that by performing successive interference cancellation at the receiver, we were able to significantly reduce the error floor caused by ICI. Furthermore, we introduce in this study a simple channel estimator based on pilot symbols to estimate the multipath fading channel information required to perform the SIG.
引用
收藏
页码：375 / 379
页数：5
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