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- Thinfilm (Sweden)SE25 papers
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13 papers · 2 filters
NOMA Versus Massive MIMO in Rayleigh Fading
Kamil Senel, Hei Victor Cheng, Emil Björnson +1
This paper compares the sum rates and rate regions achieved by power-domain NOMA (non-orthogonal multiple access) and standard massive MIMO (multiple-input multiple-output) techniq…
Human and Machine Type Communications can Coexist in Uplink Massive MIMO Systems
Kamil Senel, Emil Björnson, Erik G. Larsson
Future cellular networks are expected to support new communication paradigms such as machine-type communication (MTC) services along with human-type communication (HTC) services. T…
Centralized and Distributed Power Allocation for Max-Min Fairness in Cell-Free Massive MIMO
Sucharita Chakraborty, Emil Björnson, Luca Sanguinetti
Cell-free Massive MIMO systems consist of a large number of geographically distributed access points (APs) that serve users by coherent joint transmission. Downlink power allocatio…
MRT-based Joint Unicast and Multigroup Multicast Transmission in Massive MIMO Systems
Meysam Sadeghi, Emil Björnson, Erik G. Larsson +2
We study joint unicast and multigroup multicast transmission in single-cell massive multiple-input-multiple-output (MIMO) systems, under maximum ratio transmission. For the unicast…
Uplink Performance of Cell-Free Massive MIMO Over Spatially Correlated Rician Fading Channels
Zhe Wang, Jiayi Zhang, Emil Björnson +1
We consider a practical cell-free massive multiple-input-multiple-output (MIMO) system with multi-antenna access points (APs) and spatially correlated Rician fading channels. The s…
Enhanced Fairness and Scalability of Power Control Schemes in Multi-Cell Massive MIMO
Amin Ghazanfari, Hei Victor Cheng, Emil Björnson +1
This paper studies the transmit power optimization in multi-cell massive multiple-input multiple-output (MIMO) systems. Network-wide max-min fairness (NW-MMF) and network-wide prop…