Potential Architecture for Future Generation "Green" Wireless Base Station
2009 (English)In: 2009 4th International Symposium on Wireless and Pervasive Computing, ISWPC 2009, IEEE, 2009, 4800602Conference paper (Refereed)
Current radio frequency power amplifiers (PAs) 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. A comparison of PA with pulse width modulation drive and PA with envelope elimination and restoration (EER) drive is offered. EER-driven PA promises high efficiency over a wide dynamic range but has bandwidth expansion problems. A novel approach which reduces bandwidth expansion on the envelope by 54% is proposed. A modulator is used to convert amplitude and phase information into the edges of a pulse train. The modulator also eradicates some analog components present in traditional base station design.
Place, publisher, year, edition, pages
IEEE, 2009. 4800602
IdentifiersURN: urn:nbn:se:lnu:diva-61594DOI: 10.1109/ISWPC.2009.4800602ISI: 000267363700054ISBN: 9781424429660 (print)OAI: oai:DiVA.org:lnu-61594DiVA: diva2:1083601
2009 4th International Symposium on Wireless and Pervasive Computing, ISWPC 2009; Melbourne, Australia; 11-13 February 2009