Title | ||
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Reduction of OFDM out-of-band emissions with a multi-step active interference cancelation technique |
Abstract | ||
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Adjacent channel interference (ACI) between OFDM signals severely impacts system performance and spectrum efficiency. To eliminate ACI, Active Interference Cancelation (AIC) techniques using additional modulated OFDM sub-carriers can be adopted. This paper describes an AIC technique based on multi-step calculation of clipped canceling symbols. The algorithm has simple implementation and allows to easily control the extra power required for canceling symbols. To avoid bandwidth expansion, non-orthogonal canceling sub-carriers (E-AIC) can be easily incorporated in the procedure. The achievable reduction of the OFDM spectrum tail power has been evaluated analytically and by simulation. |
Year | DOI | Venue |
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2014 | 10.1109/WCNC.2014.6952159 | Wireless Communications and Networking Conference |
Keywords | Field | DocType |
OFDM modulation,adjacent channel interference,interference suppression,radio spectrum management,ACI,AIC techniques,OFDM out-of-band emissions,OFDM spectrum tail power,active interference cancelation techniques,adjacent channel interference,clipped canceling symbols,multistep active interference cancelation technique,nonorthogonal canceling subcarriers,spectrum efficiency | Telecommunications,Bandwidth expansion,Out-of-band management,Computer science,Adjacent-channel interference,Real-time computing,Electronic engineering,Spectral efficiency,Interference cancelation,Orthogonal frequency-division multiplexing | Conference |
ISSN | Citations | PageRank |
1525-3511 | 0 | 0.34 |
References | Authors | |
11 | 3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Romeo Giuliano | 1 | 263 | 45.48 |
Franco Mazzenga | 2 | 153 | 35.12 |
Pierpaolo Loreti | 3 | 93 | 18.75 |