Paper Info
Title
Downlink overloaded multiple access based on constellation expansion
Abstract
A new overloaded multiple access scheme for the downlink of wireless systems is presented. It performs simultaneous transmission of multiple data streams intended for users experiencing similar signal-to-noise ratios (SNR). The proposed scheme performs stream multiplexing by mapping the coded bits of each stream onto the labels of an expanded constellation according to a time-varying pattern designed for providing the same level of protection against errors to all streams. Using this scheme, multiple data streams can be concurrently transmitted on the same time-frequency resource blocks of OFDMA systems, thus achieving a higher aggregate spectral efficiency and tighter delay constraints.
Year
DOI
Venue
2014
10.1109/GLOCOMW.2014.7063560
Globecom Workshops
Keywords
Field
DocType
Long Term Evolution,OFDM modulation,aggregate spectral efficiency,constellation expansion,downlink overloaded multiple access,expanded constellation,multiple data streams,stream multiplexing,tighter delay constraints,time-frequency resource blocks,time-varying pattern,wireless systems
Signal processing,Multiple data,Wireless systems,Computer science,Computer network,Real-time computing,Constellation,Spectral efficiency,Multiplexing,Telecommunications link
Conference
Citations 
PageRank 
References 
0
0.34
6
Authors
3
Name
Order
Citations
PageRank
Alberto Perotti1446.80
Jaap van de Beek262.54
Branislav M. Popovic39617.13