Title :
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
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;
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
DOI :
10.1109/BWCCA.2010.76
