Adaptive synchronization reference selection for out-of-coverage Proximity Services (ProSe)

Published

October 8, 2017

Author(s)

Samantha M. Gamboa Quintiliani, Fernando J. Cintron, David W. Griffith, Richard A. Rouil

Abstract

Proximity services (ProSe) is a Long Term Evolution Advanced (LTE-A) feature that allows User Equipments (UEs) to communicate without the need of routing the data throughout the network. In this paper, we studied the synchronization protocol used by ProSe-enabled UEs in out- of-coverage scenarios. In particular, we studied the triggering frequency of the distributed Synchronization Reference (SyncRef) selection algorithm used in these scenarios. We showed the disadvantage of using a periodic algorithm, and we developed an adaptive algorithm that triggers the process when suitable depending on the conditions of each UE. We evaluated the algorithm performance using our ns-3 ProSe implementation, and considering the protocol and requirements specified in the LTE-A standard. The results show that fast convergence time to a synchronized state can be achieved using the adaptive algorithm.

Proceedings Title

28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications

Conference Dates

October 8-13, 2017

Conference Location

Montreal

Pub Type

Conferences

Download Paper

https://doi.org/10.1109/PIMRC.2017.8292758

Local Download

Keywords

LTE, D2D, Synchronization, 3GPP, Proximity Services

Citation

Gamboa, S. , Cintron, F. , Griffith, D. and Rouil, R. (2017), Adaptive synchronization reference selection for out-of-coverage Proximity Services (ProSe), 28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Montreal, -1, [online], https://doi.org/10.1109/PIMRC.2017.8292758 (Accessed October 8, 2025)