Title
Robust Clipping for OFDM Transmissions over Memoryless Impulsive Noise Channels
Abstract
The detriment arising from strong and frequently occurring impulses over an Orthogonal Frequency Division Multiplexing system is paramount because signals on sub-carriers appear to be corrupted simultaneously. To overcome this obstacle, clipping has been reported as an effective approach. Unlike previous works, this work derived the clipping threshold without assuming the a priori knowledge of the probability density function (PDF) of impulsive noise, which is usually unobtainable in precise measure in most practical scenarios, and may change rapidly over time. Then, a decoding metric accommodated to the clipping effect was derived to realize coding gain. To attest the proposed scheme, this study conducted computer simulations in compliance with the IEEE 1901 standard. For various impulse noise models under consideration, the proposed scheme was promisingly on par with its conventional counterpart, the clipping threshold of which, however, relies on an assumed PDF.
Year
DOI
Venue
2012
10.1109/LCOMM.2012.050412.120491
IEEE Communications Letters
Keywords
Field
DocType
OFDM,Bit error rate,Receivers,Decoding,AWGN,Indexes
Coding gain,Telecommunications,Computer science,Algorithm,Real-time computing,Impulse noise,Decoding methods,Probability density function,Additive white Gaussian noise,Orthogonal frequency-division multiplexing,Clipping (audio),Bit error rate
Journal
Volume
Issue
ISSN
16
7
1089-7798
Citations 
PageRank 
References 
21
0.95
4
Authors
5
Name
Order
Citations
PageRank
Der-Feng Tseng15110.46
Yunghsiang S. Han22472159.76
Wai Ho Mow3116193.21
Li-Chung Chang4374.46
a j han vinck541958.77