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A DTN Perspective on Mobile Relays for Cellular Networks Vasilis Friderikos

A DTN Perspective on Mobile Relays for Cellular Networks Vasilis Friderikos Centre for Telecommunication Research, King’s College London E-mail: vasilis.friderikos@kcl.ac.uk. Objectives and Rationale. Key Results.

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A DTN Perspective on Mobile Relays for Cellular Networks Vasilis Friderikos

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  1. A DTN Perspective on Mobile Relays for Cellular Networks Vasilis Friderikos Centre for Telecommunication Research, King’s College LondonE-mail: vasilis.friderikos@kcl.ac.uk Objectives and Rationale Key Results • Mobile network operators are currently witnessing a decoupling between aggregate traffic demand and revenues • In addition both OPEX and CAPEX are increased since to enhance capacity small cells with higher densiity need to be deployed • Network sustainability requires novel solutions to be implemented. Reduction on energy consumption thousand times ! Co-channel interference reduction due to the localization of the transmissions Total energy consumption A Paradigm Shift from Voice to Data • With the shift to mobile Internet services, voice has become only part of a bigger ecosystem with a plethora of services. • The penetration of smart-phones and mobile Internet applications has contributed to an exponential growth in demand RF energy consumption Set of Benefits of Performing Store Carry and Forward Transmissions Reduced blocking probability for real timetraffic Load Balancing Across Cells Increased Spatial Capacity Utilizing Service Elasticity and User Mobility to Reduce Energy Cost Energy Savings at BSs (downlink) Less co-channel interference Switching-off Low Utilization BSs • By store-carry and forward we trade-off message delivery delays for energy efficiency by simply postponing communication for future time instances with better channel gains • Applications • Email client synchronization • On demand video content access • News feeds, Social networking and the like • Where are the gains coming from? Future Perspectives • Proximity-based Services (ProSe) – which is a new study Item for 3GPP Rel-12 • Application of store carry and forward relying in different families of elastic cloud based applications: • Storage as a Service (StaaS) • Processing as a Servce (PraaS) • Software as a Service (SaaS) Transmit here! For the Interested Reader 1000 times better quality signal P. Kolios, V. Friderikos, K. Papadaki, Ultra low energy store-carry and forward relaying within the cell, IEEE Vehicular Technology Conference, Sept. 2009, pp. 1-5 Panayiotis Kolios, Vasilis Friderikos, Katerina Papadaki, A practical approach to energy efficient communications in mobile wireless networks, Mobile networks and applications (MONET), 2011, Online ISSN 1383-469X Panayiotis Kolios, Vasilis Friderikos, Katerina Papadaki, Future wireless mobile networks, IEEE Vehicular Technology Magazine, 6 (1). pp. 24-30, 2011 Don't transmit here!

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