Distributed ON/OFF switching and dynamic channel allocation: Decreasing complexity and improving energy efficiency

Atefeh Hajijamali Arani, Abolfazl Mehbod Niya, Mohammad Javad Omidi, Fumiyuki Adachi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Heterogeneous network (HetNet) has emerged as a promising and viable approach to deliver higher-rate data services. In HetNets, switching OFF base stations (BSs) is known as an effective solution to reduce the energy consumption of networks and thus enables the “greener” networks concept. In this paper, we investigate the impact of the number of energy-saving modes for BSs on improving energy efficiency. We assume that BSs are able to switch among several modes, ie, different transmission power levels. We apply a no-regret learning algorithm to choose the BS's operation mode while modeling the BS's operation under dynamic traffic with a Markov process. As a result, we face a trade-off between energy savings and computational complexity. Furthermore, we use a distributed channel allocation algorithm based on the average cochannel interference power. Simulation results show that energy consumption reduces with increased number of modes. However, increasing the number of modes beyond a certain limit will not have a significant effect on energy efficiency.

Original languageEnglish
Article numbere3222
JournalTransactions on Emerging Telecommunications Technologies
Volume28
Issue number12
DOIs
Publication statusPublished - 2017 Dec

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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