Flux Research Group / School of Computing

Towards Understanding TCP Performance on LTE/EPC Mobile Networks

Binh Nguyen, Arijit Banerjee, Vijay Gopalakrishnan, Sneha Kumar Kasera, Seungjoon Lee, Aman Shaikh, and Jacobus (Kobus) Van der Merwe

Proceedings of the 4th Workshop on All Things Cellular: Operations, Applications and Challenges (AllThingsCellular) 2014.

DOI: 10.1145/2627585.2627594

Networking, Mobile Networking


The popularity of smartphones and smartphone ap- plications means that data is the dominant traffic type in current mobile networks. In this paper we present our work on a systematic investigation into facets of the LTE/EPC architecture that impact the performance of TCP as the predominant transport layer protocol used by applications on mobile networks. We found that (1) load increase in a cell causes dramatic bandwidth reduction on UEs and significantly degrades TCP performance, (2) seamless handover causes significant TCP losses while lossless handover increases TCP segments’ delay.