An Efficient Impulsive Noise Mitigation Scheme for Over-Sampled OFDM Systems

被引：9
|
作者：
Zhang, Xiaoxin [1 ]
Zhao, Yuping [1 ]
Zou, Li [2 ]
机构：
[1] Peking Univ, Sch Elect Engn & Comp Sci, State Key Lab Adv Opt Commun Syst & Networks, Beijing 100871, Peoples R China
[2] Thomson Broadband R&D Beijing Co Ltd, Beijing, Peoples R China
来源：
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS | 2009年 / 55卷 / 02期
关键词：
Impulsive noise; orthogonal frequency division multiplexing (OFDM); over-sampling; blanking nonlinearity; windowing nonlinearity; MULTICARRIER;
D O I：
10.1109/TCE.2009.5174394
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：
Impulsive noise severely affects the performance of wireless communication systems. In orthogonal frequency division multiplexing (OFDM) systems, detecting impulsive interference is challenging since both OFDM signals and impulsive noise follow Gaussian distributions. This paper proposes windowing nonlinearity scheme to detect and remove the over-sampled impulsive interference in OFDM systems. The analysis of the false detection probability (FDP) and successful detection probability (SDP) is given. The results indicate that the proposed scheme detects impulsive noise efficiently. In addition, the closed-form expressions for the FDP and SDP of blanking nonlinearity scheme which is widely used to remove impulsive interference are also derived(1).
引用
收藏
页码：360 / 365
页数：6
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