Paper Info
Title
Multiuser Superposition Transmission (Must) For Lte-A Systems
Abstract
A new study item termed downlink Multiuser Superposition Transmission (MUST) has been established in 3GPP Release 13 [1]. As the name suggests, MUST utilizes the concept of superposition coding for a multiuser transmission in LTE-Advanced (LTE-A) systems. While superposition coding can be applied at symbol level, the symbol-domain superposition coding not only increases network signaling overhead and implementation difficulty, but also causes performance degradation due to non-Gray mapping resulting from the symbol-domain superposition. In this paper, we propose a bit-domain multiuser superposition technique by exploiting the intrinsic properties of bit-interleaved coded modulation (BICM) which is one of key technologies for LTE systems. Simulation results show that the bit-domain MUST can increase both the cell-average and cell-edge user spectral efficiency by more than 20% compared to single-user MIMO (SU-MIMO).
Year
DOI
Venue
2016
10.1109/ICC.2016.7510909
2016 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)
Field
DocType
ISSN
Superposition principle,Quadrature amplitude modulation,Computer science,Multiuser detection,MIMO,Real-time computing,Spectral efficiency,LTE Advanced,Telecommunications link,Encoding (memory)
Conference
1550-3607
Citations 
PageRank 
References 
4
0.38
3
Authors
3
Name
Order
Citations
PageRank
Heunchul Lee115414.65
Sungsoo Kim211524.95
Jonghan Lim361.47