Name
Title | ||
|---|---|---|
Novel overlay/underlay cognitive radio waveforms using SD-SMSE framework to enhance spectrum efficiency-part ii: analysis in fading channels |
Abstract | ||
|---|---|---|
Interest in Cognitive Radio (CR) remains strong as the communications community strives to solve the spectrum congestion problem. In conventional CR implementations, interference to primary users is minimized using either overlay waveforms that exploit unused (white) spectrum holes or underlay waveforms that spread their power spectrum density over an ultra-wide bandwidth. In Part I, we proposed a novel hybrid overlay/underlay waveform that realizes benefits of both waveforms and demonstrated its performance in an AWGN channel. This was done by extending the original Spectrally Modulated Spectrally Encoded (SMSE) framework to enable soft decision CR implementations that exploit both unused (white) and underused (gray) spectral areas. In Part II, we analyze and evaluate performance of the proposed hybrid overlay/underlay waveform in frequency selective fading channels. A simulated performance analysis of overlay, underlay and hybrid overlay/ underlay waveforms in frequency selective fading channels is presented and benefits discussed. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/TCOMM.2010.06.090176 | IEEE Transactions on Communications |
Keywords | Field | DocType |
soft decision cr implementation,underlay cognitive radio,underlay waveform,proposed hybrid overlay,novel hybrid overlay,overlay waveform,power spectrum density,hybrid overlay,novel overlay,frequency selective fading channel,conventional cr implementation,sd-smse framework,simulated performance analysis,spectrum efficiency-part ii,bandwidth,fading channel,bit error rate,chromium,signal to noise ratio,cognitive radio,frequency,software defined radio,spectrum,ofdm,interference,fading | Fading,Computer science,Electronic engineering,Underlay,Bandwidth (signal processing),Spectral efficiency,Additive white Gaussian noise,Orthogonal frequency-division multiplexing,Cognitive radio,Spread spectrum | Journal |
Volume | Issue | ISSN |
58 | 6 | 0090-6778 |
Citations | PageRank | References |
7 | 0.83 | 7 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Vasu Chakravarthy | 1 | 161 | 26.35 |
| Xue Li | 2 | 93 | 11.57 |
| Ruolin Zhou | 3 | 40 | 7.00 |
| Zhiqiang Wu | 4 | 134 | 17.56 |
| Michael Temple | 5 | 7 | 1.51 |