This paper presents an energy efficient and QoS aware cell zooming scheme assisted by low power Relay Base Stations (RBSs). Cell zooming is a promising technology for future cellular networks in order to achieve a higher energy efficiency, while maintain QoS of the mobile users. However, the benefit of cell zooming scheme is limited by the increased outage probability, pertaining to the fact that new coverage holes can be formed and inter-cell interference also increases as a result of increased transmission power. In this paper we propose a relay-assisted cell zooming algorithm that achieves energy efficiency in cellular networks while maintain QoS of the users. We analyze energy efficiency and resource consumption of the proposed scheme and compare the performance with that of the basic cell zooming scheme.
Energy Efficient Relay-Assisted Cell Zooming in a Wireless Heterogeneous Network
2017-09-01
297135 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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