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On the energy-bandwidth trade-off in green wireless networks: System level results

: Butt, M.M.; Schubert, B.; Kurras, M.; Borner, K.; Haustein, T.; Thiele, L.


Institute of Electrical and Electronics Engineers -IEEE-:
1st IEEE International Conference on Communications in China, ICCC 2012. Workshops proceedings : 15-17 August 2012, Bejing, China
Piscataway, NJ: IEEE, 2012
ISBN: 978-1-4673-2997-2
ISBN: 978-1-4673-2996-5
International Conference on Communications in China (ICCC) <1, 2012, Beijing>
Workshop on Smart and Green Communications & Networks (SGCNet) <2012, Beijing>
Workshop on Mobile Cloud Computing (MobiCC) <2012, Beijing>
International Workshop on Optical Wireless Communications in China (OWCC) <1, 2012, Beijing>
Fraunhofer HHI ()

Energy efficient communication is getting a lot of attention from the industry and academia due to high energy cost of operating mobile networks and their environmental effects. We discuss the self optimization aspect of the mobile network and evaluate the performance of power allocation strategy for the network at low load specifically where bandwidth efficiency is not as important. We propose trading of bandwidth for achieving high energy efficiency. We evaluate the impact of allocation of extra bandwidth in a lightly loaded cell on the overall network energy efficiency. The numerical results demonstrate the optimal load conditions when bandwidth expansion is useful for the network.