Name
Abstract | ||
|---|---|---|
This Out-of-Band (OOB) radiations in Orthogonal Frequency Division Multiplexing (OFDM) system leads to the wastage of the scarce spectral resources and may pose severe interference threats to the legacy user in dynamic spectrum sharing environment. In this paper, we propose a novel technique for reducing OOB radiations caused by the high sidelobes in OFDM system. The principle of this technique is to map groups of two input transmit symbols on to expanded constellation points such that subcarriers in each group are 180 degrees out of phase. As a result, the proposed technique reduces the OFDM sidelobes by more than 10 dB in average at the cost of a slight increase in bit error rate. An important advantage of the proposed technique is that it donot require any side information to be transmitted. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/ICTEL.2010.5478875 | ICT |
Keywords | Field | DocType |
sidelobe suppression,out-of-band radiation reduction,bit error rate,ofdm modulation,dynamic spectrum sharing environment,division,cognitive radio,multiplexing (ofdm),orthogonal frequency division multiplexing,orthogonal frequency division multiplexing (ofdm),fast fourier transforms,radio spectrum management,out-of-band (oob) radiations,signal-to-noise ratio (snr),ofdm-based cognitive radio,ofdm system,orthogonal,error statistics,oob radiations,interference threats,fft,frequency,ofdm,out of band,interference,information technology,radio transmitters,frequency division multiplexing,transmitters,power generation,binary phase shift keying,spectrum,signal to noise ratio | Transmitter,Computer science,Frequency-division multiplexing,Real-time computing,Electronic engineering,Fast Fourier transform,Interference (wave propagation),Electrical engineering,Orthogonal frequency-division multiplexing,Cognitive radio,Bit error rate,Phase-shift keying | Conference |
ISBN | Citations | PageRank |
978-1-4244-5247-7 | 2 | 0.42 |
References | Authors | |
5 | 2 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Noreen, S. | 1 | 3 | 0.76 |
| Naeem Zafar Azeemi | 2 | 3 | 0.79 |