Intercell interference measured in urban areas

Authors:
S. Jaeckel;L. Thiele;A. Brylka;L. Jiang;V. Jungnickel;C. Jandura;J. Heft
Affiliations:
Heinrich Hertz Institut, Berlin, Germany;Heinrich Hertz Institut, Berlin, Germany;Heinrich Hertz Institut, Berlin, Germany;Heinrich Hertz Institut, Berlin, Germany;Heinrich Hertz Institut, Berlin, Germany;Technical University Dresden, Dresden, Germany;Technical University Dresden, Dresden, Germany
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

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Abstract

We report on measurements at 2.53 GHz with 20 MHz bandwidth in two triple-sectored urban macro-cell deployments in Berlin and Dresden, Germany. These measurements assist the design of multiuser and cooperative transmission and detection techniques promising to reduce the interference in future cellular systems. We study the geometry factor and the Top-N power statistics in the non-cooperative case and compare the results with a commonly used spatial channel model. Furthermore we observe that the median delay parameters in a coherent single frequency network deployment are roughly 1.5 times higher than in an isolated cell while the maximum excess delays are similar in both cases. Finally we study the correlation of the channel response for different antenna spacings at the base station. When the sector antennas are close together, the correlation is generally high which is also predicted by the channel model, but with spacings of about 20 m the correlation significantly decreases.