LTE-advanced modem design: challenges and perspectives

Author

Bai, Dongwoon ; Park, Cheolhee ; Lee, Jungwon ; Nguyen, Hoang ; Singh, Jaspreet ; Gupta, Ankit ; Pi, Zhouyue ; Kim, Taeyoon ; Lim, Chaiman ; Kim, Min-Goo ; Kang, Inyup

Volume

50

Issue

2

fYear

2012

fDate

2/1/2012 12:00:00 AM

Firstpage

178

Lastpage

186

Abstract

The commercial deployment of LTE Release 8 is gaining significant momentum all over the globe, and LTE is evolving to LTE-Advanced, which offers various new features to meet or exceed IMT-Advanced requirements. Since LTE-Advanced targets ambitious spectral efficiency and peak throughput, it poses tremendous system design challenges to operators and manufacturers, especially for mobile terminals. This article discusses modem design issues related to carrier aggregation, enhanced ICIC for HetNet, detection of eight-layer transmission, reference signals for enhanced multi-antenna support, and HARQ buffer management. We provide an overview of technical challenges and sketch the perspectives for tackling them to exploit the full benefits of the LTE-Advanced system.

Keywords

Long Term Evolution; antenna arrays; modems; spectral analysis; telecommunication terminals; HARQ buffer management; HetNet; IMT-advanced requirements; LTE Release 8; LTE-advanced modem design; carrier aggregation; eight-layer transmission detection; enhanced ICIC; long term evolution; mobile terminals; multiantenna support; spectral efficiency; 4G mobile communication; Downlink; Interference; MIMO; Radio frequency; Signal to noise ratio;

fLanguage

English

Journal_Title

Communications Magazine, IEEE

Publisher

ieee

ISSN

0163-6804

Type

jour

DOI

10.1109/MCOM.2012.6146497

Filename

6146497