Base Station Operation Based on Affinity Propagation in Cellular Networks

Wireless communication network requires a net design that can cope with peak mobile traffic. The mobile traffic fluctuates over time. It is known that the energy consumption of base stations (BSs) accounts for a large percentage of the overall network energy consumption. Recently, small cell base stations (SBSs) are deployed at high density to cope with the increasing amount of mobile traffic. However, activating all SBSs during non-peak hours of traffic leads to a decrease in energy efficiency. BS sleep strategy has been considered to improve energy efficiency. In this paper, affinity propagation (AP) based BS sleep technology is proposed. AP does not need to determine the number of clusters in advance. The computer simulation results show that the proposed scheme can reduce the outage probability of user equipment (UE) compared to the conventional scheme.