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A Potential Transmitter Architecture for Future Generation Green Wireless Base Station

Bassoo, Vandana and Tom, Kevin and Mustafa, Abdul K and Cijvat, Ellie and Sjoland, Henrik and Faulkner, Mike (2009) A Potential Transmitter Architecture for Future Generation Green Wireless Base Station. EURASIP Journal on Wireless Communications and Networking, 2009. pp. 1-8. ISSN 1687-1472

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Abstract

Current radio frequency power amplifiers in 3G base stations have very high power consumption leading to a hefty cost and negative environmental impact. In this paper, we propose a potential architecture design for future wireless base station. Issues associated with components of the architecture are investigated. The all-digital transmitter architecture uses a combination of envelope elimination and restoration (EER) and pulse width modulation (PWM)/pulse position modulation (PPM) modulation. The performance of this architecture is predicted from the measured output power and efficiency curves of a GaN amplifier. 57% efficiency is obtained for an OFDM signal limited to 8 dB peak to average power ratio. The PWM/PPM drive signal is generated using the improved Cartesian sigma delta techniques. It is shown that an RF oversampling by a factor of four meets the WLAN spectral mask, andWCDMA specification is met by an RF oversampling of sixteen.

Item Type: Article
Uncontrolled Keywords: ResPubID17611. transmitter architecture, future generation, green wireless base stations, future wireless base station, environmental sustainability, all-digital transmitter architecture, envelope elimination and restoration, EER, pulse width modulation, PWM, pulse position modulation, PPM
Subjects: FOR Classification > 0906 Electrical and Electronic Engineering
SEO Classification > 8901 Communication Networks and Services
Faculty/School/Research Centre/Department > Centre for Telecommunications and Micro-Electronics (CTME)
FOR Classification > 1005 Communications Technologies
Depositing User: VUIR
Date Deposited: 21 Sep 2011 00:21
Last Modified: 21 Sep 2011 00:21
URI: http://vuir.vu.edu.au/id/eprint/4146
DOI: 10.1155/2009/821846
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Citations in Scopus: 4 - View on Scopus

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