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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Subbiah, I. Ashok, A. Varga, G. Schrey, M. Heinen, S. |
| Copyright Year | 2014 |
| Description | Author affiliation: Integrated Analog Circuits & RF Syst., RWTH Aachen Univ., Aachen, Germany (Subbiah, I.; Ashok, A.; Varga, G.; Schrey, M.; Heinen, S.) |
| Abstract | It is known that cognitive radio (CR) is an attractive concept to overcome the prevailing spectrum scarcity and inefficient spectrum usage. Also, with their intermittent spectral vacancies, TV white spaces offer a faster deployment potential considered with respect to cognitive radios. In this paper, system design of a high intermediate frequency (IF) to UHF frequency converter for cognitive radios have been discussed and the performance of such a converter analyzed as a proof of concept. For the design of RF front-ends, CR brings forth huge architectural challenges such as in-band local oscillator harmonics, ultra low sensitivity and high linearity. As shown in this paper, a high-IF radio front-end can successfully tackle some of these challenges. Additionally, such a high-IF converter enables white space operation for existing commercial devices by acting as frequency converters. From detailed measurements, the capabilities in both physical layer and application layer performance of a high-IF front-end developed out of off-the-shelf components is explained and is shown to provide negligible degradation to the commercial device being connected to. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 91262 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781479941391 |
| DOI | 10.1109/CCS.2014.6933784 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-09-02 |
| Publisher Place | Germany |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Radio frequency Wireless LAN TV White spaces Frequency conversion Cognitive radio Standards |
| Content Type | Text |
| Resource Type | Article |
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