Delay and throughput of Long Term Evolution under TCP traffic

With an increasing use of Long-Term Evolution (LTE) in mobile networks, it is necessary to evaluate its performance. In this paper, we evaluate the performance of Long Term Evolution (LTE) for mobile networks under Transmission Control Protocol (TCP) traffic. We evaluate the performance of LTE for TCP traffic for both the directions uplink as well as downlink. During the evaluations, we focus on the following performance parameters: average delay, average throughput and jitter. We evaluate the effect of the link bandwidth, number of active subscribers, and packet size on the performance parameters using simulations.

I. Introduction

There is a lot of advancement in the wireless communication technology in the recent past. Starting from the first generation analog devices, which were replaced by digital ones, and thereafter many other services and features are added in newer generations of the wireless communication technologies. Each new technology is aimed to enhance the coverage and bandwidth to the subscribers. There are many standards proposed in the literature some of them are either already deployed or are in the phases of deployment. Long Term Evolution (LTE) is a standard developed by 3rd Generation Partnership Project (3GPP) for cellular networks and is termed as 4th Generation (4G) technology.