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dc.contributor.authorHussaini, Abubakar S.*
dc.contributor.authorAbd-Alhameed, Raed A.*
dc.contributor.authorRodriguez, Jonathan*
dc.date.accessioned2011-02-23T15:35:16Z
dc.date.available2011-02-23T15:35:16Z
dc.date.issued16/11/2010
dc.identifier.citationHussaini, S. A., Abd-Alhameed, R. and Rodriguez, R. (2010). Approach Towards Energy Efficient Power Amplifier for 4G Communications. In: Proceedings of the 25th WWRF Meeting, Kingston-upon-Thames, UK, 16th-18th November 2010. WWRF. pp. 1-4.en_US
dc.identifier.urihttp://hdl.handle.net/10454/4805
dc.descriptionyesen_US
dc.description.abstractThe biggest challenge for future 4G systems is the need to limit the energy consumptions of battery-powered and base station devices, with the aim to prolong their operational time and avoid active cooling in the base station. The green wireless communications requires research in areas such as energy efficient RF front end, MAC protocol, networking, deployment, operation, and also the integration of base station with renewable power supply. In this paper, the design concept of energy efficient RF front end is considered in terms of RF power amplifiers at which it represents the workhorse of modern wireless communication systems and inherently nonlinear. The approach of output power back off is to amplify the signal at the linear region to avoid distortion, but this approach suffers from significant reduction in efficiency and power output. To boost the efficiency at wide range of output power and keep the same margin for signal with high crest factor, the load modulation technique with new offset line are employed to operate over the frequency range of 3.4GHz to 3.6GHz band. The performances of load modulation power amplifier are compared with balanced amplifier. The results of 42dBm output power and 62% power added efficiency are achieved.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttp://www.wireless-world-research.org/index.php?id=92en_US
dc.rights© 2010 The Authors and Wireless World Research Forum. [In the framework of the C2POWER project]. Reproduced by permission from the copyright holder.en_US
dc.subjectBalanced amplifieren_US
dc.subjectLoad modulation RF power amplifieren_US
dc.subjectOFDMen_US
dc.subject4G (Fourth generation systems)en_US
dc.titleApproach Towards Energy Efficient Power Amplifier for 4G Communications.en_US
dc.status.refereedYesen_US
dc.typeConference paperen_US
dc.type.versionAccepted Manuscripten_US
refterms.dateFOA2018-07-19T04:26:47Z


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