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System level performance of cellular networks utilizing ASA/LSA mechanisms

: Wirth, T.; Holfeld, B.; Wieruch, D.; Halfmann, R.; Friederichs, K.-J.


Institute of Electrical and Electronics Engineers -IEEE-; IEEE Communications Society:
1st IEEE International Workshop on Cognitive Cellular Systems, CCS 2014 : Held on a cruise ship along the most beautiful part of the Rhine River, Germany; September 2 - 4, 2014
Piscataway, NJ: IEEE, 2014
ISBN: 978-1-4799-4140-7
5 S.
International Workshop on Cognitive Cellular Systems (CCS) <1, 2014, Rhine River>
Fraunhofer HHI ()

Flexible and efficient spectrum usage in cellular communication systems is a key to meet the service demand of forthcoming 4G and 5G networks by 2020. Recent wide-band power measurements in an urban environment show that spectrum below 6 GHz is still under-utilized. Licensed shared access (LSA) is one technique which can be deployed to make use of these valuable resources. In this paper we highlight cell-planning aspects for the implementation of licensed shared access (LSA) in LTE cellular networks. Different cellular deployments are evaluated by means of system-level simulations. Numerical results show that transmit power, antenna type and orientation, as well as antenna downtilt should be carefully evaluated during the planning of spectrum sharing deployments using LSA in cellular wireless.