Mobility Based MIMO Link Adaptation in LTE-Advanced Cellular Networks

Author

Ramamurthi, Vishwanath ; Chen, Wei-Peng

Author_Institution

Fujitsu Labs. of America, Sunnyvale, CA, USA

fYear

2010

fDate

4-6 Nov. 2010

Firstpage

235

Lastpage

241

Abstract

As the demand for mobile broadband services are growing, cellular networks are heading towards their fourth generation (4G). Long Term Evolution - Advanced (LTE-A) is emerging as a major candidate for 4G cellular networks. MIMO technology combined with OFDMA is a major technological change in 4G compared to their 3G counterparts. However various MIMO configurations and modulation/coding schemes(MCS) need to be carefully tuned to derive the promised gains of MIMO technology. In this paper we evaluate the performance of different MIMO configurations and MCSs in the downlink of LTE-based cellular networks. We propose a signal-to-noise-ratio(SNR) cum mobility based MIMO/MCS link adaptation to enhance the overall performance of the LTE downlink.

Keywords

4G mobile communication; MIMO communication; OFDM modulation; frequency division multiple access; mobility management (mobile radio); 4G cellular networks; LTE advanced cellular networks; OFDMA; long term evolution; mobile broadband services; mobility-based MIMO link adaptation; modulation-coding schemes; Downlink; MIMO; OFDM; Phase shift keying; Redundancy; Signal to noise ratio; Switches; 4G; LTE; OFDM; link adaptation; performance evaluation;

fLanguage

English

Publisher

ieee

Conference_Titel

Broadband, Wireless Computing, Communication and Applications (BWCCA), 2010 International Conference on

Conference_Location

Fukuoka

Print_ISBN

978-1-4244-8448-5

Electronic_ISBN

978-0-7695-4236-2

Type

conf

DOI

10.1109/BWCCA.2010.76

Filename

5633380