Optimized LTE data transmission procedures for IoT: Device side energy consumption analysis
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AuthorAndres-Maldonado, Pilar; Ameigeiras Gutiérrez, Pablo José; Prados Garzón, Jonathan; Ramos-Munoz, Juan J.; López Soler, Juan Manuel
Institute of Electrical and Electronics Engineers (IEEE)
P. Andres-Maldonado, P. Ameigeiras, J. Prados-Garzon, J. J. Ramos-Munoz and J. M. Lopez-Soler, "Optimized LTE data transmission procedures for IoT: Device side energy consumption analysis," 2017 IEEE International Conference on Communications Workshops (ICC Workshops), 2017, pp. 540-545, doi: 10.1109/ICCW.2017.7962714.
SponsorshipThis work is partially supported by the Spanish Ministry of Economy and Competitiveness and the European Regional Development Fund (Projects TIN2013-46223-P, and TEC2016- 76795-C6-4-R), and the Spanish Ministry of Education, Culture and Sport (FPU Grant 13/04833).
The efficient deployment of Internet of Things (IoT) over cellular networks, such as Long Term Evolution (LTE) or the next generation 5G, entails several challenges. For massive IoT, reducing the energy consumption on the device side becomes essential. One of the main characteristics of massive IoT is small data transmissions. To improve the support of them, the 3GPP has included two novel optimizations in LTE: one of them based on the Control Plane (CP), and the other on the User Plane (UP). In this paper, we analyze the average energy consumption per data packet using these two optimizations compared to conventional LTE Service Request procedure. We propose an analytical model to calculate the energy consumption for each procedure based on a Markov chain. In the considered scenario, for large and small Inter-Arrival Times (IATs), the results of the three procedures are similar. While for medium IATs CP reduces the energy consumption per packet up to 87% due to its connection release optimization.