Phase Synchronization Impact on Throughput Performance in LTE Network

Phase Synchronization Impact on Throughput Performance in LTE Network

Rajesh P., Madhusudana C.K., Prakash Nagarajan, Rakesh Hanumantha
Copyright: © 2017 |Pages: 8
DOI: 10.4018/IJITN.2017100103
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Abstract

This paper presents a study of phase synchronization impact on throughput in Long Term Evolution (LTE) network with different transport protocols. Phase synchronization is needed for advanced features in LTE and other precise technologies with minimal clock error of Nano seconds. An End to End LTE testing environment is built by using real User Equipment (UE) and LTE core network for studying the throughput impact due to Phase Synchronization in different transport modes. This experimentation is carried out for comparing the throughput of the system with Frequency Synchronization Mode (FM) and Frequency & Phase synchronization Mode (FPM). A novel study has been conducted on throughput for TCP and UDP traffic in different LTE bandwidths, based on real traffic conditions. The study shows that system performance in Uplink (UL) and Downlink (DL) throughput has improved by using Frequency along with Phase synchronization in LTE network using GPS as a clock source.
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2. System Architecture

2.1. LTE System Overview

The standard LTE Architecture shows the components and standard interfaces to connect different Network elements (NE’s) in the network. Figure 1 shows the End-to-End system architecture of the LTE network.

Figure 1.

System architecture of LTE system

IJITN.2017100103.f01

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