Name
Abstract | ||
|---|---|---|
The cognitive radio idea consists in the exploitation of spectral resources that are unused by a licensed user within a telecommunication standard. After having detected these available frequency bands by some sensing technique, our work takes a stand on the spectrum access problem. This issue requires some constraints on the modulation that must be taken into account. The flexibility in frequency offered by a multicarrier modulation (MCM) then represents a strong advantage which, in addition, can be fully exploited by the OFDM/OQAM modulation. Indeed, the fact that well localised frequency pulse shapes can be employed makes this modulation attractive for an optimised dynamic spectrum insertion. OFDM/OQAM and OFDM-based solutions are finally tested considering two different transmission scenarios. In both scenarios, it is shown that, for OFDM/OQAM, the time-frequency localisation criterion leads to a short prototype filter, satisfying a good compromise in terms of complexity/performance and also leads at the same time to a better peak-to-average power ratio (PAPR) distribution when compared to an analogue windowed OFDM scheme. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1504/IJCNDS.2012.046360 | IJCNDS |
Keywords | Field | DocType |
ofdm-based solution,spectrum access problem,different transmission scenario,efficient dynamic spectrum access,localised frequency pulse shape,cognitive radio idea,available frequency band,ofdm scheme,multicarrier modulation,oqam modulation,optimised dynamic spectrum insertion,communication networks,frequency division multiplexing,cognitive radio,software radio,ofdm,cr | Telecommunications network,Computer science,Prototype filter,Software-defined radio,Frequency-division multiplexing,Electronic engineering,Modulation,Real-time computing,Orthogonal frequency-division multiplexing,Radio spectrum,Cognitive radio,Distributed computing | Journal |
Volume | Issue | Citations |
8 | 3/4 | 4 |
PageRank | References | Authors |
0.40 | 11 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| A. Skrzypczak | 1 | 4 | 0.40 |
| J. Palicot | 2 | 81 | 12.39 |
| P. Siohan | 3 | 501 | 37.86 |