16 citations · 26 across the 17 of their papers we have counts for
7 papers · 1 filter
Design Trade-offs for Decentralized Baseband Processing in Massive MU-MIMO Systems
Kaipeng Li, James McNaney, Chance Tarver +4
Massive multi-user (MU) multiple-input multiple-output (MIMO) provides high spectral efficiency by means of spatial multiplexing and fine-grained beamforming. However, conventional…
Siamese Neural Networks for Wireless Positioning and Channel Charting
Eric Lei, Oscar Castañeda, Olav Tirkkonen +2
Neural networks have been proposed recently for positioning and channel charting of user equipments (UEs) in wireless systems. Both of these approaches process channel state inform…
A 354Mb/s 0.37mm^2 151mW 32-User 256-QAM Near-MAP Soft-Input Soft-Output Massive MU-MIMO Data Detector in 28nm CMOS
Charles Jeon, Oscar Castañeda, Christoph Studer
This paper presents a novel data detector ASIC for massive multiuser multiple-input multiple-output (MU-MIMO) wireless systems. The ASIC implements a modified version of the large-…
Improving Channel Charting with Representation-Constrained Autoencoders
Pengzhi Huang, Oscar Castañeda, Emre Gönültaş +4
Channel charting (CC) has been proposed recently to enable logical positioning of user equipments (UEs) in the neighborhood of a multi-antenna base-station solely from channel-stat…
PPAC: A Versatile In-Memory Accelerator for Matrix-Vector-Product-Like Operations
Oscar Castañeda, Maria Bobbett, Alexandra Gallyas-Sanhueza +1
Processing in memory (PIM) moves computation into memories with the goal of improving throughput and energy-efficiency compared to traditional von Neumann-based architectures. Most…
Neural-Network Optimized 1-bit Precoding for Massive MU-MIMO
Alexios Balatsoukas-Stimming, Oscar Castañeda, Sven Jacobsson +2
Base station (BS) architectures for massive multi-user (MU) multiple-input multiple-output (MIMO) wireless systems are equipped with hundreds of antennas to serve tens of users on…