Proceedings ArticleDOI
Energy optimisation in heterogeneous multi-RAT networks
Nico Bayer,Dmitry Sivchenko,Hans Joachim Einsiedler,Andreas Roos,Abdulbaki Uzun,Sebastian Göndör,Axel Küpper +6 more
- pp 139-144
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TLDR
An adaptive, context-aware, and technology-comprehensive system architecture for power management in modern radio networks for heterogeneous radio networks is described.Abstract:
To be able to serve the traffic demand in today's mobile networks, more than 123.000 base stations (BSs) have been deployed by the different network providers in Germany. These BSs are working 24/7 and are dimensioned to serve capacity demand during busy hours. Currently no mechanisms for a load adaptive network reconfiguration are implemented. As a result, much energy is wasted during times in which the capacity demand is low. This paper describes an adaptive, context-aware, and technology-comprehensive system architecture for power management in modern radio networks. The results presented are developed within the project Communicate Green (ComGreen). A major goal of ComGreen is the development of a testbed in order to investigate and demonstrate the main achievements of the project. The aim of this paper is twofold: First, it highlights the ComGreen concepts for power management in heterogeneous radio networks. Second, a detailed description of the testbed is provided.read more
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Journal ArticleDOI
Coalition formation game toward green mobile terminals in heterogeneous wireless networks
TL;DR: Simulation results validate that the proposed approach can effectively double the battery lifetimes of MTs, while successfully eliminating selfish players from cooperative groups.
Proceedings ArticleDOI
CloudMAC — An OpenFlow based architecture for 802.11 MAC layer processing in the cloud
Peter Dely,Jonathan Vestin,Andreas Kassler,Nico Bayer,Hans Joachim Einsiedler,Christoph Peylo +5 more
TL;DR: A case study is presented which shows that dynamically switching off APs to save energy can be performed seamlessly with CloudMAC, while a traditional WLAN architecture causes large interruptions for users.
Journal ArticleDOI
Green HetNet CoMP: Energy Efficiency Analysis and Optimization
Kazi Mohammed Saidul Huq,Shahid Mumtaz,Joanna Bachmatiuk,Jonathan Rodriguez,Xianbin Wang,Rui L. Aguiar +5 more
TL;DR: This paper investigates advanced energy-efficient wireless systems in orthogonal frequency-division multiple access (OFDMA) downlink networks using coordinated multipoint (CoMP) transmissions between the base stations in a heterogeneous network (HetNet), which is adopted by Third-Generation Partnership Project (3GPP) Long-Term Evolution (LTE)-Advanced to meet International Mobile Telecommunications-Advanced targets.
Proceedings ArticleDOI
Energy efficiency of load-adaptively operated telecommunication networks
TL;DR: General principles of load-adaptive network operation regimes are presented for a universal broadband operator network and their effects to network energy efficiency are explored, and techniques for adjusting the capacity load- Adaptively in different network sections are discussed.
Journal ArticleDOI
Energy Efficiency of Load-Adaptively Operated Telecommunication Networks
Christoph Lange,Dirk Kosiankowski,Andreas Betker,Holger Simon,Nico Bayer,Dirk von Hugo,Heiko Lehmann,Andreas Gladisch +7 more
TL;DR: In this paper, the authors presented load-adaptive network operation regimes for a universal broadband operator network and their effects on the network energy efficiency, where the provided network capacity is coupled dynamically to the temporally fluctuating traffic characteristics.
References
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Journal ArticleDOI
Understanding and Using Context
TL;DR: An operational definition of context is provided and the different ways in which context can be used by context-aware applications are discussed, including the features and abstractions in the toolkit that make the task of building applications easier.