Godkända
Comparison of energy efficiency between macro and micro cells using energy saving schemes
Koustubh Sharma (2013)
Start
2016-06-13
Presentation
2017-12-15 11:15
Plats:
E:3139
Avslutat:
2018-03-23
Examensrapport:
Sammanfattning
Cellular networks are among the main energy consumers in the ICT field. They were responsible for 10% of world’s total energy consumption in 2010 and the figures are doubling in every 10 years. To have an environment friendly transit into the new era of internet of things, we need to focus on energy consumption by these networks. There are various approaches for densifying the present network that we have; we will compare the approaches to cater to the traffic demands with macro cells versus micro cells deployments. In the project, we had set up a dense urban real like scenario and compared energy efficiencies between macro cells centric deployment versus a micro cells centric deployment, we made use of energy saving schemes like micro DTX, lean carrier and MBSFN to reduce the power consumed in the network. With results presented in this thesis, we will contribute to the understanding of how these cells behave in a realistic traffic scenario and how much energy saving can we achieve by implementing the above-mentioned schemes. To keep the results more generic and not specific to any particular set of radio base stations, we implemented EARTH power model to calculate power consumption. The energy saving schemes proved out to save a lot of energy in the operations of both macro and micro cells. It was observed that using the discontinuous transmission around 20% to 30% of energy could be saved. The amount of savings from these energy saving schemes depend upon the utilization and sleep time of these nodes, we saw that using energy saving schemes in macro cell deployment can give savings as much as 17% and 33% in micro cell deployment. Comparing macro without energy saving scheme to micro with lean carrier energy saving scheme results in 55% of energy savings. So, from an energy saving point of view, it would be much better to implement a heterogeneous network with more micro cells with energy saving features than just macro cells.
Handledare: Zhi Zhang (EIT)
Examinator: Maria Kihl (EIT)