Name
Abstract | ||
|---|---|---|
Ultra wideband (UWB) technology has been considered as one of the suitable transmission techniques for implementing a cognitive radio system, where spectrum-agile UWB waveforms achieve adaptation features. One approach for designing such waveforms relies on orthogonally combining PSWF-based pulse wavelets. In a cognitive UWB radio environment with N users, with respect to the case of one sub-band accessed by one user, whose transmitting signal is M-ary pulse shape modulated, we get different eigenvalues by transmitting these pulses in a multipath fading channel, we propose water filling scheme, depending on the different eigenvalues, to optimize the power allocation among them. Simulation results show that the scheme improves the sub-band channel data throughput compared with the scheme that power is equal allocated among these pulse wavelets, when the SNR is low, which is the normal case in UWB communications |
Year | DOI | Venue |
|---|---|---|
2006 | 10.1109/CROWNCOM.2006.363458 | CrownCom |
Keywords | Field | DocType |
eigenvalues,pswf-based pulse wavelets,cognitive radio,fading channels,multipath fading channel,multipath channels,ultra wideband communication,cognitive uwb radio,signal transmission,power allocation,water filling scheme,subband channel data,snr,eigenvalues and eigenfunctions,ultrawideband technology,prolate spheroidal wave functions,ultra wideband,throughput,shape,pulse modulation,fading,spectrum,pulse shaping | Multipath propagation,Transmission (telecommunications),Transmitter power output,Telecommunications,Fading,Computer science,Communication channel,Electronic engineering,Ultra-wideband,Cognitive radio,Wavelet | Conference |
ISBN | Citations | PageRank |
1-4244-0381-2 | 2 | 0.47 |
References | Authors | |
1 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Xiaofei Zhou | 1 | 131 | 20.04 |
| Honggang Zhang | 2 | 1223 | 108.55 |
| Imrich Chlamtac | 3 | 4617 | 728.71 |