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High Spectral Efficient and Flexible Next Generation Mobile Communications

Simon Plass ; Stephan Sand ; Mikael Sternad ; Arne Svensson (Institutionen för signaler och system, Kommunikationssystem)
Journal on Wireless Personal Communications, Springer (0929-6212 (Print) 1572-834X (Online)). Vol. 47 (2008), 1, p. 79-89.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: OFDM - Next generation - 4G - Spectrum flexibility

Invited, published online in October 2007

Denna post skapades 2007-12-12. Senast ändrad 2014-09-29.
CPL Pubid: 62846


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Institutioner (Chalmers)

Institutionen för signaler och system, Kommunikationssystem


Elektroteknik och elektronik

Chalmers infrastruktur