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相关论文: Topological Pilot Assignment in Large-Scale Distri…

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Extremely large-scale multiple-input multiple-output (XL-MIMO) is critical to future wireless networks. The substantial increase in the number of base station (BS) antennas introduces near-field propagation effects in the wireless channels,…

信息论 · 计算机科学 2024-12-31 Haohong Che , Li You , Jue Wang , Zhenzhou Jin , Chenjie Xie , Xiqi Gao

Reconfigurable antennas (RAs) are a promising technology to enhance the capacity and coverage of wireless communication systems. However, RA systems have two major challenges: (i) High computational complexity of mode selection, and (ii)…

Massive multiple-input multiple-output (MIMO) communication is a promising technology for increasing spectral efficiency in wireless networks. Two of the main challenges massive MIMO systems face are degraded channel estimation accuracy due…

信息论 · 计算机科学 2018-01-18 Shahar S. Ioushua , Yonina C. Eldar

We present a novel access protocol for crowd scenarios in massive MIMO (Multiple-input multiple-output) systems. Crowd scenarios are characterized by a large number of users with intermittent access behavior, whereby orthogonal scheduling…

信息论 · 计算机科学 2016-05-20 Jesper H. Sørensen , Elisabeth de Carvalho , Čedomir Stefanović , Petar Popovski

Task And Motion Planning (TAMP) is the problem of finding a solution to an automated planning problem that includes discrete actions executable by low-level continuous motions. This field is gaining increasing interest within the robotics…

机器人学 · 计算机科学 2024-08-13 Elisa Tosello , Alessandro Valentini , Andrea Micheli

The problem of uplink transmissions in massive connectivity is commonly dealt with using schemes for grant-free random access. When a large number of devices transmit almost synchronously, the receiver may not be able to resolve the…

信号处理 · 电气工程与系统科学 2024-12-09 Ao Chen , Wei Chen , Bo Ai , Petar Popovski

We study the problem of user-scheduling and resource allocation in distributed multi-user, multiple-input multiple-output (MIMO) networks implementing user-centric clustering and non-coherent transmission. We formulate a weighted sum-rate…

信息论 · 计算机科学 2021-02-08 Hussein A. Ammar , Raviraj Adve , Shahram Shahbazpanahi , Gary Boudreau , Kothapalli Srinivas

The tie-line scheduling problem in a multi-area power system seeks to optimize tie-line power flows across areas that are independently operated by different system operators (SOs). In this paper, we leverage the theory of multi-parametric…

最优化与控制 · 数学 2017-10-09 Ye Guo , Subhonmesh Bose , Lang Tong

This paper deals with a distributed Mixed-Integer Linear Programming (MILP) set-up arising in several control applications. Agents of a network aim to minimize the sum of local linear cost functions subject to both individual constraints…

最优化与控制 · 数学 2021-02-12 Andrea Camisa , Ivano Notarnicola , Giuseppe Notarstefano

Massive machine-type communications (mMTC) or massive access is a critical scenario in the fifth generation (5G) and the future cellular network. With the surging density of devices from millions to billions, unique pilot allocation becomes…

信息论 · 计算机科学 2025-04-03 Zhentian Zhang , Jian Dang , Zaichen Zhang , Liang Wu , Bingcheng Zhu , Lei Wang

This paper introduces a protocol that distributively constructs a collision-free schedule for multi-hop packet radio networks in the presence of hidden terminals. As a preliminary step, each wireless station computes the schedule length…

网络与互联网体系结构 · 计算机科学 2012-06-21 Jaume Barcelo , Boris Bellalta , Cristina Cano , Azadeh Faridi , Miquel Oliver

For a wireless multi-tier heterogeneous network with orthogonal spectrum allocation across tiers, we optimize the association probability and the fraction of spectrum allocated to each tier so as to maximize rate coverage. In practice, the…

信息论 · 计算机科学 2014-08-19 Sanam Sadr , Raviraj S. Adve

In this paper, superimposed pilots are introduced as an alternative to time-multiplexed pilot and data symbols for mitigating pilot contamination in massive multiple-input multiple-output (MIMO) systems. We propose a non-iterative scheme…

信息论 · 计算机科学 2017-08-09 Karthik Upadhya , Sergiy A. Vorobyov , Mikko Vehkapera

This letter considers the problem of joint user association (UA), sub-channel assignment, antenna selection (AS), and power control in the uplink (UL) of a heterogeneous network such that the data rate of small cell users can be maximized…

网络与互联网体系结构 · 计算机科学 2020-02-04 Ata Khalili , Soroush Akhlaghi , Hina Tabassum , Derrick Wing Kwan Ng

Real-time planning for a combined problem of target assignment and path planning for multiple agents, also known as the unlabeled version of Multi-Agent Path Finding (MAPF), is crucial for high-level coordination in multi-agent systems,…

机器人学 · 计算机科学 2022-03-01 Keisuke Okumura , Xavier Défago

We propose a novel location-aware pilot assignment scheme to mitigate pilot contamination in massive multiple-input multiple-output (MIMO) networks, where the channels are subjected to Rician fading. Our proposed scheme utilizes the…

信息论 · 计算机科学 2020-01-14 Noman Akbar , Shihao Yan , Nan Yang , Jinhong Yuan

This letter focuses on integrating rate-splitting multiple-access (RSMA) with time-division-duplex Cell-free Massive MIMO (multiple-input multiple-output) for massive machine-type communications. Due to the large number of devices, their…

信号处理 · 电气工程与系统科学 2022-05-06 Anup Mishra , Yijie Mao , Luca Sanguinetti , Bruno Clerckx

In this work, we develop a distributed source routing algorithm for topology discovery suitable for ISP transport networks, that is however inspired by opportunistic algorithms used in ad hoc wireless networks. We propose a plug-and-play…

网络与互联网体系结构 · 计算机科学 2011-05-02 Christophe Betoule , Thomas Bonald , Remi Clavier , Dario Rossi , Giuseppe Rossini , Gilles Thouenon

The robust principles of treating interference as noise (TIN) when it is sufficiently weak, and avoiding it when it is not, form the background of this work. Combining TIN with the topological interference management (TIM) framework that…

信息论 · 计算机科学 2024-10-28 Chunhua Geng , Hua Sun , Syed A. Jafar

In this paper, a stochastic approximation (SA) based distributed algorithm is proposed to solve the resource allocation (RA) with uncertainties. In this problem, a group of agents cooperatively optimize a separable optimization problem with…

最优化与控制 · 数学 2016-11-01 Peng Yi , Jinlong Lei , Yiguang Hong