Self-Optimisation of Vertical Sectorisation in a Realistic LTE Network
conference paper
Vertical Sectorisation (VS) is a feature that exploits the capabilities of Active Antenna Systems (AAS) to improve service performance and network capacity, by splitting a single cell into an inner and outer sector. The attained gains primarily depend on the suitable and timely (de)activation of VS in response to the observed/estimated traffic distribution within the cell, while further gains can be achieved by properly adjusting VS parameters such as the transmit power distribution. Considering a realistic LTE (Long Term Evolution) network environment, in this paper a SON (Self Organizing Network) algorithm is proposed and evaluated, which dynamically (de)activates the VS feature and sets the transmit power split. The results show that the (de)activation of VS through a suitably tuned SON algorithm achieves significant throughput gains, while the dynamic adaptation of the transmit power distribution is mostly beneficial when operating in interference-limited environments.
Topics
Vertical sectorisationActive antenna systemsSelf-Organizing NetworksRealistic LTE environmentVertical SectorisationAntennasDistributed computer systemsLong Term Evolution (LTE)OptimizationActive antenna systems (AAS)Active antennasDynamic adaptationsNetwork environmentsrealistic LTE environmentSectorisationSelf-organizing networkTraffic distributionsWireless telecommunication systems
TNO Identifier
526674
Publisher
IEEE
Source title
European Conference on Networks and Communications, EuCNC 2015, 29 June - 2 July 2015, Paris, France
Place of publication
Piscataway,NJ
Pages
149-153