LAUSR

User Grouping and Power Allocation for Downlink NOMA-Based Quadrature Spatial Modulation

Sign Up to like & get
recommendations!
0 Published in 2020 at "IEEE Access"

DOI: 10.1109/access.2020.2974663

Abstract: Conventional non-orthogonal multiple access (NOMA)-based spatial modulation (SM) systems utilize only the real part of amplitude-phase modulation (APM) symbols for transmission, but quadrature spatial modulation (QSM) can extend this to two orthogonal components to improve… read more here.

Keywords: spatial modulation; noma based; modulation; power allocation ... See more keywords

Joint User Grouping and Beam Selection for Beamspace mmWave Multi-User MIMO System

Sign Up to like & get
recommendations!
2 Published in 2022 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2022.3158665

Abstract: Lens antenna arrays based beamspace millimeter-wave multi-user massive MIMO (B-MIMO) can significantly improve energy efficiency without significant loss of spectral efficiency (SE), which is considered as a highly expected technology for future wireless communication networks.… read more here.

Keywords: grouping beam; multi user; user grouping; beam selection ... See more keywords

Optimal User Grouping for Downlink NOMA

Sign Up to like & get
recommendations!
1 Published in 2018 at "IEEE Wireless Communications Letters"

DOI: 10.1109/lwc.2018.2815683

Abstract: In this letter, we study the user grouping for the downlink nonorthogonal multiple access system. The optimal user grouping problem is formulated to maximize the sum rate. Due to the combinatorial nature, the computational complexity… read more here.

Keywords: grouping downlink; downlink noma; user grouping; optimal user ... See more keywords

Coded Caching With User Grouping Over Wireless Channels

Sign Up to like & get
recommendations!
1 Published in 2020 at "IEEE Wireless Communications Letters"

DOI: 10.1109/lwc.2020.2975661

Abstract: We study coded caching over non-ergodic fading channels. As the multicast capacity of a broadcast channel is restricted by the user experiencing the worst channel conditions, we formulate an optimization problem to minimize the transmission… read more here.

Keywords: coded caching; user; user grouping; channel conditions ... See more keywords

Message Passing-Based mmWave MIMO-NOMA With User Grouping and Power Allocation

Sign Up to like & get
recommendations!
2 Published in 2022 at "IEEE Transactions on Vehicular Technology"

DOI: 10.1109/tvt.2022.3192990

Abstract: In this paper, we investigate a downlink non-orthogonal multiple access (NOMA) transmission scheme for hybrid millimeter-wave (mmWave) system and study its user grouping and power allocation. In order to maximize the weighted sum-rate (WSR) of… read more here.

Keywords: grouping power; power allocation; message passing; user grouping ... See more keywords