Zobrazeno 1 - 10
of 2 131
pro vyhledávání: '"LARSSON, ERIK"'
We propose a novel generalized framework for grant-free random-access (GFRA) in cell-free massive multiple input multiple-output systems where multiple geographically separated access points (APs) or base stations (BSs) aim to detect sporadically act
Externí odkaz:
http://arxiv.org/abs/2411.09328
Considering the exponential growth of Internet-of-Things devices and the goals toward sustainable networks, the complexity should be focused on the infrastructure side. For a massive number of passive devices, backscatter communication (BC) is a prom
Externí odkaz:
http://arxiv.org/abs/2411.08401
Autor:
Wu, Yibo, Keskin, Musa Furkan, Gustavsson, Ulf, Seco-Granados, Gonzalo, Larsson, Erik G., Wymeersch, Henk
Distributed massive multiple-input multiple-output networks utilize a large number of distributed access points (APs) to serve multiple user equipments (UEs), offering significant potential for both communication and localization. However, these netw
Externí odkaz:
http://arxiv.org/abs/2410.23120
Autor:
Bai, Jianan, Larsson, Erik G.
The wireless channel changes continuously with time and frequency and the block-fading assumption, which is popular in many theoretical analyses, never holds true in practical scenarios. This discrepancy is critical for user activity detection in gra
Externí odkaz:
http://arxiv.org/abs/2410.17113
We study a delay-constrained grant-free random access system with a multi-antenna base station. The users randomly generate data packets with expiration deadlines, which are then transmitted from data queues on a first-in first-out basis. To deliver
Externí odkaz:
http://arxiv.org/abs/2410.17068
Recent developments in polymer microwave fiber (PMF) have opened great opportunities for robust, low-cost, and high-speed sub-terahertz (THz) communications. Noticing this great potential, this paper addresses the problem of estimation of the propaga
Externí odkaz:
http://arxiv.org/abs/2410.02514
Autor:
Wretblad, Niklas, Holmström, Oskar, Larsson, Erik, Wiksäter, Axel, Söderlund, Oscar, Öhman, Hjalmar, Pontén, Ture, Forsberg, Martin, Sörme, Martin, Heintz, Fredrik
Relational databases often suffer from uninformative descriptors of table contents, such as ambiguous columns and hard-to-interpret values, impacting both human users and text-to-SQL models. In this paper, we explore the use of large language models
Externí odkaz:
http://arxiv.org/abs/2408.04691
We propose a novel method for user-to-user interference (UUI) mitigation in dynamic time-division duplex multiple-input multiple-output communication systems with multi-antenna users. Specifically, we consider the downlink data transmission in the pr
Externí odkaz:
http://arxiv.org/abs/2408.03740
Backscatter communication (BC) has emerged as a key technology to satisfy the increasing need for low-cost and green Internet-of-Things (IoT) connectivity, especially in large-scale deployments. Unlike the monostatic BC (MoBC), the bistatic BC (BiBC)
Externí odkaz:
http://arxiv.org/abs/2407.18048
Extremely large-scale antenna arrays (ELAA) play a critical role in enabling the functionalities of next generation wireless communication systems. However, as the number of antennas increases, ELAA systems face significant bottlenecks, such as exces
Externí odkaz:
http://arxiv.org/abs/2407.16121