Throughput and capacity of MIMO WiMAX

Authors:
Christian Mehlführer;Sebastian Caban;José A. García-Naya;Markus Rupp
Affiliations:
Institute of Communications and Radio-Frequency Engineering, Vienna University of Technology, Vienna, Austria;Institute of Communications and Radio-Frequency Engineering, Vienna University of Technology, Vienna, Austria;Department of Electronics and Systems, University of A Coruña, A Coruña, Spain;Institute of Communications and Radio-Frequency Engineering, Vienna University of Technology, Vienna, Austria
Venue:
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Year:
2009

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Abstract

In this work, we present physical layer throughput measurement results of a WiMAX link implemented according to IEEE 802.16-2004. The measurements were carried out in an alpine and an urban scenario using the Vienna MIMO Testbed. We compare the measured throughput to three different theoretical bounds: 1) the channel capacity, 2) the mutual information, and 3) a so-called "achievable throughput" which takes inherent system losses into account. Furthermore, the impact of different channel codes and channel estimators on the measured throughput is analyzed.