High Spectral Efficient and Flexible Next Generation Mobile Communications
Artikel i vetenskaplig tidskrift, 2008

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.

OFDM - Next generation - 4G - Spectrum flexibility

Författare

Simon Plass

Deutsches Zentrum fur Luft- Und Raumfahrt

Stephan Sand

Deutsches Zentrum fur Luft- Und Raumfahrt

Mikael Sternad

Uppsala universitet

Arne Svensson

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Wireless Personal Communications

0929-6212 (ISSN) 1572-834X (eISSN)

Vol. 47 79-89

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1007/s11277-007-9392-y