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High spectral efficient and flexible next generation mobile communications
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Signals and Systems Group.
Chalmers tekniska universitet, Signaler o system.
2008 (English)In: Wireless personal communications, ISSN 0929-6212, E-ISSN 1572-834X, Vol. 47, no 1, 79-89 p.Article in journal (Refereed) Published
Abstract [en]

In this article we identify and describe the requirements and challenges of next generation mobile communications systems. The so-called fourth generation (4G) aims at throughput rates of more than 100 MBit/s outdoors with high mobility and 1GBit/s indoors. This requires new advanced techniques in the air interface of such a system. We outline new possible techniques and introduce a future basic physical layer concept. The adaptivity to the channel of all the modules in such a possible concept is highlighted. Since the needed large bandwidth for high data rates is a very valuable resource, future communications systems need a high spectrum flexibility. Furthermore, 4G systems will face severe inter-cell interference scenarios that have to be tackled. Both challenges, i.e., spectrum flexibility and inter-cell interference, are discussed in more detail.

Place, publisher, year, edition, pages
2008. Vol. 47, no 1, 79-89 p.
Keyword [en]
OFDM, next generation, 4G, spectrum flexibility
National Category
Signal Processing
Research subject
Signal Processing
URN: urn:nbn:se:uu:diva-109113DOI: 10.1007/s11277-007-9392-yISI: 000258658600008OAI: oai:DiVA.org:uu-109113DiVA: diva2:248907
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2016-04-13Bibliographically approved

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