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In cell-free massive multiple-input multiple-output (MIMO) systems, the beamforming strategies at the base stations (BSs) and user equipments (UEs) can be computed building on bi-directional training. However, the precoding/decoding…

Signal Processing · Electrical Eng. & Systems 2021-10-13 Bikshapathi Gouda , Italo Atzeni , Antti Tölli

The evolution of 5G wireless technology has revolutionized connectivity, enabling a diverse range of applications. Among these are critical use cases such as real time teleoperation, which demands ultra reliable low latency communications…

Networking and Internet Architecture · Computer Science 2025-05-23 Narges Golmohammadi , Madan Mohan Rayguru , Sabur Baidya

Millimeter-wave (mmWave) communication systems, particularly those leveraging multi-user multiple-input and multiple-output (MU-MIMO) with hybrid beamforming, face challenges in optimizing user throughput and minimizing latency due to the…

Information Theory · Computer Science 2026-03-04 Ramin Hashemi , Vismika Ranasinghe , Teemu Veijalainen , Petteri Kela , Risto Wichman

In this paper, we develop a deep learning (DL)-guided hybrid beam and power allocation approach for multiuser millimeter-wave (mmWave) networks, which facilitates swift beamforming at the base station (BS). The following persisting…

Signal Processing · Electrical Eng. & Systems 2023-05-24 Yuwen Cao , Tomoaki Ohtsuki , Setareh Maghsudi , Tony Q. S. Quek

This work presents a novel trie (prefix-tree)-based parallel decoding method that addresses the memory inefficiency of batch-based beam search. By sharing a single KV cache across beams with common prefixes, our approach dramatically…

Computation and Language · Computer Science 2025-09-23 Brian J Chan , MaoXun Huang , Jui-Hung Cheng , Chao-Ting Chen , Hen-Hsen Huang

We investigate the problem of multi-hop scheduling in self-backhauled millimeter wave (mmWave) networks. Owing to the high path loss and blockage of mmWave links, multi-hop paths between the macro base station and the intended users via…

Networking and Internet Architecture · Computer Science 2018-04-27 Trung Kien Vu , Chen-Feng Liu , Mehdi Bennis , Merouane Debbah , Matti Latva-aho

This work describes the orchestration of a fleet of rotary-wing Unmanned Aerial Vehicles (UAVs) for harvesting prioritized traffic from random distributions of heterogeneous users with Multiple Input Multiple Output (MIMO) capabilities. In…

Systems and Control · Electrical Eng. & Systems 2024-04-02 Bharath Keshavamurthy , Nicolo Michelusi

In this paper, we investigate a resource allocation and model retraining problem for dynamic wireless networks by utilizing incremental learning, in which the digital twin (DT) scheme is employed for decision making. A two-timescale…

Signal Processing · Electrical Eng. & Systems 2024-11-28 Jiayi Cong , Guoliang Cheng , Changsheng You , Xinyu Huang , Wen Wu

In this paper, we for the first time investigate the random access problem for a delay-constrained heterogeneous wireless network. We begin with a simple two-device problem where two devices deliver delay-constrained traffic to an access…

Networking and Internet Architecture · Computer Science 2022-05-05 Lei Deng , Danzhou Wu , Zilong Liu , Yijin Zhang , Yunghsiang S. Han

Massive Multiple-input Multiple-output (MIMO) adaption is one of the primary evolving objectives for the next generation high speed train (HST) communication system. In this paper, we consider how to design an efficient low-complexity…

Information Theory · Computer Science 2017-03-16 Xuhong Chen , Pingyi Fan

This paper is concerned with the channel estimation problem in multi-cell Millimeter (mmWave) wireless systems. We develop a novel Ray-of-Arrival Passing for Indirect (RAPID) Beam Training framework, in which a network consisting of…

Information Theory · Computer Science 2018-05-01 Matthew Kokshoorn , He Chen , Yonghui Li , Branka Vucetic

The explosive growth of global mobile traffic has lead to a rapid growth in the energy consumption in communication networks. In this paper, we focus on the energy-aware design of the network selection, subchannel, and power allocation in…

Networking and Internet Architecture · Computer Science 2015-12-31 Haoran Yu , Man Hon Cheung , Longbo Huang , Jianwei Huang

In this paper, we investigate a cell-free massive multiple-input and multiple-output (MIMO)-enabled integration communication, computation, and sensing (ICCS) system, aiming to minimize the maximum computation latency to guarantee the…

Signal Processing · Electrical Eng. & Systems 2025-02-25 Qihao Peng , Qu Luo , Zheng Chu , Zihuai Lin , Maged Elkashlan , Pei Xiao , George K. Karagiannidis , Christos Masouros

Reconfigurable intelligent surface (RIS) have been cast as a promising alternative to alleviate blockage vulnerability and enhance coverage capability for terahertz (THz) communications. Owing to large-scale array elements at transceivers…

Information Theory · Computer Science 2024-09-04 Xinying Ma , Gong Chen , Xiaofei Wang

This paper presents a hierarchical planning algorithm for racing with multiple opponents. The two-stage approach consists of a high-level behavioral planning step and a low-level optimization step. By combining discrete and continuous…

Robotics · Computer Science 2026-04-29 Georg Jank , Matthias Rowold , Boris Lohmann

Memory-aware network scheduling is becoming increasingly important for deep neural network (DNN) inference on resource-constrained devices. However, due to the complex cell-level and network-level topologies, memory-aware scheduling becomes…

Machine Learning · Computer Science 2023-08-29 Shuzhang Zhong , Meng Li , Yun Liang , Runsheng Wang , Ru Huang

This paper presents a mixed traffic control policy designed to optimize traffic efficiency across diverse road topologies, addressing issues of congestion prevalent in urban environments. A model-free reinforcement learning (RL) approach is…

Robotics · Computer Science 2025-01-29 Chuyang Xiao , Dawei Wang , Xinzheng Tang , Jia Pan , Yuexin Ma

Multi-agent Deep Reinforcement Learning (MADRL) based traffic signal control becomes a popular research topic in recent years. To alleviate the scalability issue of completely centralized RL techniques and the non-stationarity issue of…

Artificial Intelligence · Computer Science 2023-09-08 Hankang Gu , Shangbo Wang , Xiaoguang Ma , Dongyao Jia , Guoqiang Mao , Eng Gee Lim , Cheuk Pong Ryan Wong

To compensate the loss from outdated channel state information in wideband massive multiple-input multipleoutput (MIMO) systems, channel prediction can be performed by leveraging the temporal correlation of wireless channels. Machine…

Information Theory · Computer Science 2022-08-10 Beomsoo Ko , Hwanjin Kim , Junil Choi

Inrecent time a rapid increase in the number of smart devices and user applications have generated an intensity volume of data traffic from/to a cellular network. So the Long Term Evaluation(LTE)network is facing some issuesdifficulties…

Multimedia · Computer Science 2025-03-20 Md. Zahurul Haque , Md. Rafiqul Isla