Commonwealth Scientific and Industrial Research Organisation (CSIRO) has recently conducted a technology demonstration of a novel fixed wireless broadband access system in rural Australia. The system is based on multi-user multiple-input multiple-output orthogonal frequency division multiplexing (MU-MIMO-OFDM). It demonstrated an uplink of six simultaneous users with distances ranging from 10 m to 8.5 km from a central tower, achieving 20 bits/s/Hz spectrum efficiency. This paper reports on the analysis of channel capacity and bit error probability simulation based on the measured MU-MIMO-OFDM channels obtained during the demonstration, and their comparison with the results based on channels simulated by a novel geometric optics based channel model suitable for MU-MIMO-OFDM in rural areas. Despite its simplicity, the model was found to predict channel capacity and bit error rate probability accurately for a typical MU-MIMO- OFDM deployment scenario.
[1]
Jack H. Winters,et al.
On the Capacity of Radio Communication Systems with Diversity in a Rayleigh Fading Environment
,
1987,
IEEE J. Sel. Areas Commun..
[2]
David Humphrey,et al.
Solving user-symbol specific phase offset problem for multiuser MIMO-OFDM fixed uplink
,
2011,
Asia-Pacific Microwave Conference 2011.
[3]
Timothy A. Thomas,et al.
LTE-advanced: next-generation wireless broadband technology [Invited Paper]
,
2010,
IEEE Wireless Communications.
[4]
Dhammika Jayalath,et al.
Deterministic diffraction loss modelling for novel broadband communication in rural environments
,
2011,
2011 Australian Communications Theory Workshop.
[5]
Lakshminarayanan Subramanian,et al.
Economic Analysis of Networking Technologies for Rural Developing Regions
,
2005,
WINE.