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15 papers · 2 filters
Dynamic Resource Allocation in Co-Located and Cell-Free Massive MIMO
Zheng Chen, Emil Björnson, Erik G. Larsson
In this paper, we study joint power control and scheduling in uplink massive multiple-input multiple-output (MIMO) systems with randomly arriving data traffic. We consider both co-…
Joint Unicast and Multi-group Multicast Transmission in Massive MIMO Systems
Meysam Sadeghi, Emil Björnson, Erik G. Larsson +2
We study the joint unicast and multi-group multicast transmission in massive multiple-input-multiple-output (MIMO) systems. We consider a system model that accounts for channel est…
On the Energy Efficiency of Limited-Backhaul Cell-Free Massive MIMO
Manijeh Bashar, Kanapathippillai Cumanan, Alister G. Burr +3
We investigate the energy efficiency performance of cell-free Massive multiple-input multiple-output (MIMO), where the access points (APs) are connected to a central processing uni…
Delay Violation Probability and Age of Information Interplay in the Two-user Multiple Access Channel
Nikolaos Pappas, Marios Kountouris
In this paper, we study the interplay between delay violation probability and average Age of Information (AoI) in a two-user wireless multiple access channel with multipacket recep…
Sum Throughput Maximization in Multi-Tag Backscattering to Multiantenna Reader
Deepak Mishra, Erik G. Larsson
Backscatter communication (BSC) is being realized as the core technology for pervasive sustainable Internet-of-Things applications. However, owing to the resource-limitations of pa…
Age of Information in a Multiple Access Channel with Heterogeneous Traffic and an Energy Harvesting Node
Zheng Chen, Nikolaos Pappas, Emil Björnson +1
Age of Information (AoI) is a newly appeared concept and metric to characterize the freshness of data. In this work, we study the delay and AoI in a multiple access channel (MAC) w…