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Related Articles from SNS
Sparse Activation for Sustainable Cell-Free Massive MIMO Networks: Less is More
arXiv:2606.03912v1 Announce Type: new Abstract: Motivated by the vision of making sixth-generation (6G) networks sustainable, we study the sparse antenna/array activation problems in uplink cell-free massive multiple-input multiple-output (CF mMIMO) networks. We first develop an antenna-level optimal bilinear equalizer (OBE) weighting framework, in which each access point-user equipment (AP-UE) pair is assigned a matrix-valued long-term weight to shape the contribution of individual antenna...
Inductive Latent Context Persistence: Closing the Post-Handover Cold Start in 6G Radio Access Networks
Announce Type: replace Abstract: In modern radio access networks (RANs), rule-based handover (HO) decisions (e.g., A3/A5) depend on user equipment (UE) measurements only, so UEs at the same location can receive inconsistent HO outcomes. GNN-based methods improve HO KPIs using richer context than measurements alone. However, recurrent or graph models discard the per-UE recurrent state at HO and reinitialize at the target next-generation Node B (gNB), losing mobility history and forcing the...
Rivaling Transformers: Multi-Scale Structured State-Space Mixtures for Agentic 6G O-RAN
arXiv:2510.05255v2 Announce Type: replace Abstract: In sixth-generation (6G) Open Radio Access Networks (O-RAN), proactive control is preferable. A key open challenge is delivering control-grade predictions within Near-Real-Time (Near-RT) latency and computational constraints under multi-timescale dynamics. We therefore cast RAN Intelligent Controller (RIC) analytics as an agentic perceive-predict xApp that turns noisy, multivariate RAN telemetry into short-horizon per-User Equipment (UE)...
A Geometric Gaussian Mixture Representation of Plane Curves
Announce Type: new Abstract: We introduce a user defined probabilistic polygonal representation for plane curves. Given a curve, we select vertices on the curve and connect consecutive vertices by line segments to obtain a polygonal approximation. Each segment is equipped with a user defined uncertainty parameter in the normal direction.
AT&T sues to ditch Cali copper phone lines to save billions
AT&T is suing state officials in California to overturn regulations that mandate the continued provision of traditional copper phone lines, as the company seeks to transition to a fibre-optic network. The US telecoms giant plans a $19 billion investment to bring fibre to millions of households, arguing that maintaining the aging copper infrastructure is costly and unnecessary for the small percentage of customers who still use it. Critics, however, warn that phasing out the old network could negatively impact vulnerable users, including the elderly and those reliant on medical equipment.
Energy Efficiency Optimization for Rotatable Antenna-Enabled Uplink NOMA Systems
arXiv:2606.05600v1 Announce Type: new Abstract: This paper investigates a rotatable antenna (RA)-enabled uplink non-orthogonal multiple access (NOMA) system, where a base station equipped with multiple independently RAs serves both ground and aerial users. Specifically, we formulate an energy efficiency (EE) maximization problem by jointly optimizing receive beamforming, user power allocation, and RA rotation. To make the problem tractable, a new block coordinate descent-based algorithm is...
Rotatable Antenna-Enhanced Cell-Free Communication
arXiv:2512.04742v3 Announce Type: replace Abstract: Rotatable antenna (RA) is a promising technology that can exploit new spatial degrees-of-freedom (DoFs) by flexibly adjusting the three-dimensional (3D) boresight direction of antennas. In this letter, we investigate an RA-enhanced cell-free system for downlink transmission, where multiple RA-equipped access points (APs) cooperatively serve multiple single-antenna users over the same time-frequency resource. Specifically, we aim to maximize...
Rotatable Antenna-Enhanced Cell-Free Communication
arXiv:2512.04742v4 Announce Type: replace Abstract: Rotatable antenna (RA) is a promising technology that can exploit new spatial degrees-of-freedom (DoFs) by flexibly adjusting the three-dimensional (3D) boresight direction of antennas. In this letter, we investigate an RA-enhanced cell-free system for downlink transmission, where multiple RA-equipped access points (APs) cooperatively serve multiple single-antenna users over the same time-frequency resource. Specifically, we aim to maximize...
Don’t repeat 5G mistakes with 6G, plead mobile operators
A body that represents mobile operators wants the migration to 6G networks to be as smooth as possible, learning lessons from the fractious 5G introduction that has left countries like the UK with a less than satisfactory service. The Next Generation Mobile Networks Alliance (NGMN) says that 6G requires a different standardization approach in order to prevent complexity and market confusion, alongside a smooth and cost-effective migration path for its members. What exactly defines 6G is...
RA-LWLM: Retrieval-Augmented In-Context Localization with Wireless Foundation Models
arXiv:2606.01899v1 Announce Type: cross Abstract: Wireless localization is a fundamental capability of sixth-generation (6G) networks. Conventional model-based methods require accurate modeling of the propagation environment and degrade in complex multipath and non-line-of-sight scenarios, while learning-based methods couple model parameters tightly to the training scene, requiring costly retraining whenever the base station (BS) configuration or propagation environment changes. In this...