Zobrazeno 1 - 10
of 120 076
pro vyhledávání: '"Spectral-efficiency"'
This paper investigates the maximum downlink spectral efficiency of low earth orbit (LEO) constellations. Spectral efficiency, in this context, refers to the sum rate of the entire network per unit spectrum per unit area on the earth's surface. For p
Externí odkaz:
http://arxiv.org/abs/2412.00235
This paper proposes a distributed learning-based framework to tackle the sum ergodic rate maximization problem in cell-free massive multiple-input multiple-output (MIMO) systems by utilizing the graph neural network (GNN). Different from centralized
Externí odkaz:
http://arxiv.org/abs/2411.02900
From the telecommunication companies' perspective, the preference for integrated sensing and communication (ISAC) for sixth-generation (6G) is to enhance existing infrastructure with sensing capabilities while minimizing network alterations and optim
Externí odkaz:
http://arxiv.org/abs/2409.20420
Autor:
Tominaga, Eduardo Noboro, López, Onel Luis Alcaraz, Svensson, Tommy, Souza, Richard Demo, Alves, Hirley
Contemporary wireless communications systems adopt the Multi-User Multiple-Input Multiple-Output (MU-MIMO) technique: a single base station or Access Point (AP) equipped with multiple antenna elements serves multiple active users simultaneously. Aimi
Externí odkaz:
http://arxiv.org/abs/2410.07159
Autor:
Tominaga, Eduardo Noboro, López, Onel Luis Alcaraz, Svensson, Tommy, Souza, Richard Demo, Alves, Hirley
Most works evaluating the performance of Multi-User Multiple-Input Multiple-Output (MU-MIMO) systems consider Access Points (APs) with fixed antennas, that is, without any movement capability. Recently, the idea of APs with antenna arrays that are ab
Externí odkaz:
http://arxiv.org/abs/2408.08112
Coordinated multipoint (CoMP) systems incur substantial resource consumption due to the management of backhaul links and the coordination among various base stations (BSs). Accurate prediction of coordinated spectral efficiency (CSE) can guide the op
Externí odkaz:
http://arxiv.org/abs/2408.07320
Publikováno v:
IEEE Transactions on Wireless Communications, vol. 23, no. 10, pp. 15421-15434, Oct. 2024
With antenna spacing much less than half a wavelength in confined space, holographic multiple-input multiple-output (HMIMO) technology presents a promising frontier in next-generation mobile communication. We delve into the research of the multi-user
Externí odkaz:
http://arxiv.org/abs/2407.10848
In this work, we present a tutorial on how to account for the computational time complexity overhead of signal processing in the spectral efficiency (SE) analysis of wireless waveforms. Our methodology is particularly relevant in scenarios where achi
Externí odkaz:
http://arxiv.org/abs/2407.05805
In contrast to the conventional reconfigurable intelligent surfaces (RIS), intelligent omni-surfaces (IOS) are capable of full-space coverage of smart radio environments by simultaneously transmitting and reflecting the incident signals. In this pape
Externí odkaz:
http://arxiv.org/abs/2405.01167