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LTE Advanced

About: LTE Advanced is a research topic. Over the lifetime, 4055 publications have been published within this topic receiving 74262 citations. The topic is also known as: Long-Term Evolution Advanced & LTE-A.


Papers
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Journal ArticleDOI
TL;DR: An overview of the key radio access features and functionalities of the LTE-Advanced radio access network, supported by the simulation results is presented.
Abstract: Long Term Evolution Advanced (LTE-Advanced) is the next step in LTE evolution and allows operators to improve network performance and service capabilities through smooth deployment of new techniques and technologies. LTE-Advanced uses some new features on top of the existing LTE standards to provide better user experience and higher throughputs. Some of the most significant features introduced in LTE-Advanced are carrier aggregation, enhancements in heterogeneous networks, coordinated multipoint transmission and reception, enhanced multiple input multiple output usage and deployment of relay nodes in the radio network. Mentioned features are mainly aimed to enhance the radio access part of the cellular networks. This survey article presents an overview of the key radio access features and functionalities of the LTE-Advanced radio access network, supported by the simulation results. We also provide a detailed review of the literature together with a very rich list of the references for each of the features. An LTE-Advanced roadmap and the latest updates and trends in LTE markets are also presented.

32 citations

Proceedings ArticleDOI
Young-Han Nam1, Saifur Rahman1, Yang Li1, Gang Xu1, Eko Onggosanusi1, Jianzhong Zhang1, Ji-Yun Seol1 
29 Oct 2015
TL;DR: A brief summary of recent 3GPP activities, including the recently completed 3D channel model, ongoing study on FD-MIMO scenarios, antenna/RF (radio frequency) transceiver architectures, as well as potential network performance benefits are provided.
Abstract: Elevation beamforming and Full Dimension MIMO (FD-MIMO) has been an active area of research and standardization in 3GPP LTE-Advanced. In an FD-MIMO system, a base station with 2-dimensional (2D) active array supports multi-user joint elevation and azimuth beamforming (a.k.a. 3D beamfoming), which results in much higher cell capacity compared to conventional systems. Recent study has shown that with these new FD-MIMO technologies, we can achieve promising 3–5× gain in both cell capacity as well as cell-edge throughput. In this paper, we will provide a brief summary of recent 3GPP activities, including the recently completed 3D channel model, ongoing study on FD-MIMO scenarios, antenna/RF (radio frequency) transceiver architectures, as well as potential network performance benefits. In addition, we also discuss some methods for reducing CSI (channel state information) feedback overhead and ensuring efficient operation of large size FD-MIMO for both TDD and FDD systems.

32 citations

Proceedings ArticleDOI
10 Jun 2014
TL;DR: Numerical results prove that the proposed approach can significantly improves dropping rate of the incoming traffic with using more real-time and dynamic decisions for offloading.
Abstract: Mobile data offloading on smaller cells such as Wi-Fi comes as a natural solution to boost cellular networks capacity and keep up with the rapid increase of mobile data traffic demand. In this paper, we propose an offloading mechanism through the abstraction of Software-defined Networking (SDN) in the mobile backhaul to provide programmable offloading policy derivation that are aware of users and applications as well as the condition of wireless network. The proposed mechanism considers the real-time network condition to derive the offloading policies and efficiently accommodate the traffic in both LTE and Wi-Fi networks. Numerical results prove that the proposed approach can significantly improves dropping rate of the incoming traffic with using more real-time and dynamic decisions for offloading.

31 citations

Proceedings ArticleDOI
12 Jun 2019
TL;DR: This work presents an experimental performance study on the wireless communication of a quadrocopter connected to an LTE-Advanced network and measures of TCP traffic analyze how the received power level, signal-to-interference ratio, and throughput depend on the flight height.
Abstract: This work presents an experimental performance study on the wireless communication of a quadrocopter connected to an LTE-Advanced network. Measurements of TCP traffic analyze how the received power level, signal-to-interference ratio, and throughput depend on the flight height. An average throughput of 20 Mb/s in the downlink and 40 Mb/s in the uplink is achieved at 150 m. We also show how the number of line-of-sight links to base stations rises with height and leads to an increased handover rate.

31 citations

Proceedings Article
18 Nov 2011
TL;DR: The combination of increased data rates in 4G cellular networks, dedicated multicast/broadcast services (e-MBMS), and the emergence of scalable video coding standards (H.264 SVC) allow mobile operators to offer multimedia-based services with a high quality of experience to end users.
Abstract: The combination of increased data rates in 4G cellular networks (such as LTE Advanced), dedicated multicast/broadcast services (e-MBMS) and the emergence of scalable video coding standards (H.264 SVC) allow mobile operators to offer multimedia-based services with a high quality of experience to end users. H.264 SVC offers three dimensions of scalability v.i.z. Quality (SNR), Temporal and Spatial.

31 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202316
202242
202156
202082
2019135
2018192