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Global warming caused many countries to call for drastic energy savings within the coming years. At the same time we see a rapidly increasing demand on Telecom services. Estimations of the future Telecom and ICT sectors' energy consumption are varying; nevertheless all predict an increase of energy consumption. On the other hand, the ICT sector is believed to be one of the solutions on the way to...
The overall goal of the EARTH project is to identify concepts that will further improve the energy efficiency of wireless access networks. This paper elaborates on radio node level issues addressed by the project. The focus is on radio base station components and radio link concepts to adopt the potential for energy efficiency offered by holistic joint optimisations. A new class of power efficient...
The spatiotemporal and just-in-time mobile multicast routing protocol of Wireless Sensor Network, such as Mobicast, which has the perfect usefulness in monitoring Mobile entities, Communications with higher security requirements. Most of the existing Mobicast routing protocols is focused on the group key distribution and management, but also realized under the conditions of static grouping, which...
Recently, wireless sensor networks (WSNs) have become increasingly available for data-intensive applications such as micro-climate monitoring, precision agriculture, and audio/video surveillance. A key challenge faced by data-intensive WSNs is to transmit the sheer amount of data generated within an application's lifetime to the base station despite the fact that sensor nodes have limited power supplies...
In this paper we address the issue of store-carry and forward (SCF) relaying within a cell in a mobile network. The proposed scheme can be considered as a generalization of various multihop wireless relaying schemes, where storing and carrying an information message by a mobile relay node is not allowed. The key motivation of utilizing SCF relaying within the cell is that energy consumption levels...
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