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Distributed and Scalable Uplink Processing for LIS: Algorithm, Architecture, and Design Trade-offs
Jesus Rodriguez Sanchez, Fredrik Rusek, Ove Edfors +1
The Large Intelligent Surface (LIS) is a promising technology in the areas of wireless communication, remote sensing and positioning. It consists of a continuous radiating surface…
Millimeter-Wave Massive MIMO Testbed with Hybrid Beamforming
MinKeun Chung, Liang Liu, Andreas Johansson +5
Massive multiple-input multiple-out (MIMO) technology is vital in millimeter-wave (mmWave) bands to obtain large array gains. However, there are practical challenges, such as high…
Trade-offs in Decentralized Multi-Antenna Architectures: The WAX Decomposition
Juan Vidal Alegría, Fredrik Rusek, Ove Edfors
Current research on multi-antenna architectures is trending towards increasing the amount of antennas in the base stations (BSs) so as to increase the spectral efficiency. As a res…
Phase-Noise Compensation for OFDM Systems Exploiting Coherence Bandwidth: Modeling, Algorithms, and Analysis
MinKeun Chung, Liang Liu, Ove Edfors
Phase-noise (PN) estimation and compensation are crucial in millimeter-wave (mmWave) communication systems to achieve high reliability. The PN estimation, however, suffers from hig…
The Effect of Coupling Memory and Block Length on Spatially Coupled Serially Concatenated Codes
Mojtaba Mahdavi, Muhammad Umar Farooq, Liang Liu +3
Spatially coupled serially concatenated codes (SC-SCCs) are a class of spatially coupled turbo-like codes, which have a close-to-capacity performance and low error floor. In this p…
Trade-offs In Quasi-Decentralized Massive MIMO
Juan Vidal Alegría, Fredrik Rusek, Jesús Rodríguez Sánchez +1
Typical massive multiple-input multiple-output (MIMO) architectures consider a centralized approach, in which all baseband data received by each antenna has to be sent to a central…