Authors
Volker Jungnickel, Malte Schellmann, Lars Thiele, Thomas Wirth, Thomas Haustein, Otto Koch, Wolfgang Zirwas, Egon Schulz
Publication date
2009/6/26
Journal
IEEE Communications Magazine
Volume
47
Issue
6
Pages
56-66
Publisher
IEEE
Description
With the introduction of orthogonal frequency- division multiplexing and multiple antennas in cellular networks, there are new opportunities to adapt the transmission to propagation and interference conditions. In this article we describe a practical approach using space-frequency-selective multiuser MIMO scheduling. Frequency-selective feedback is provided on achievable data rates for preferred single- and multistream transmission modes. The base station selects the best mode while providing instantaneous fairness. We observe that multiuser transmission increases the probability of using multistream transmission. Besides the benefits from optimal combining at the physical layer, there is an additional gain at the MAC layer since the estimation of achievable rates becomes more precise. Altogether, 93 percent of the theoretical throughput can be realized by synchronizing the base stations and providing cell …
Total citations
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Scholar articles
V Jungnickel, M Schellmann, L Thiele, T Wirth… - IEEE Communications Magazine, 2009