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Though the concept of non-orthogonal multiple access (NOMA) was proposed several years ago, the performance of uplink NOMA has only been verified in theory, but not in practice. This paper presents an over-the-air implementation of a uplink…

Networking and Internet Architecture · Computer Science 2018-01-18 Samith Abeywickrama , Lei Liu , Yuhao Chi , Chau Yuen

In this correspondence, we investigate networked sensing in perceptive mobile networks under a bistatic multi-transmitter single-receiver uplink topology, where multiple user equipments (UEs) transmit signals over orthogonal…

Signal Processing · Electrical Eng. & Systems 2026-03-18 Jingying Bao , J. Andrew Zhang , Kai Wu , Christos Masouros , Y. Jay Guo

We propose a novel resource efficient analog over-the-air (OTA) computation framework to address the demanding requirements of the uplink (UL) fronthaul between the access points (APs) and the central processing unit (CPU) in cell-free…

Information Theory · Computer Science 2023-11-15 Zakir Hussain Shaik , Sai Subramanyam Thoota , Emil Björnson , Erik G. Larsson

LTE Narrowband Internet of Things (NB-IoT) is a 3GPP defined cellular technology that is designed to enable connectivity to many low-cost and low power/throughput IoT devices running delay-tolerant applications. NB-IoT can coexist within…

Networking and Internet Architecture · Computer Science 2020-03-16 Arvind Chakrapani

This paper describes an automated, formal and rigorous analysis of the Ad hoc On-Demand Distance Vector (AODV) routing protocol, a popular protocol used in wireless mesh networks. We give a brief overview of a model of AODV implemented in…

Networking and Internet Architecture · Computer Science 2015-12-24 Ansgar Fehnker , Rob van Glabbeek , Peter Höfner , Annabelle McIver , Marius Portmann , Wee Lum Tan

Service-orientation is a promising paradigm that enables the engineering of large-scale distributed software systems using rigorous software development processes. The existing problem is that every service-oriented software development…

Software Engineering · Computer Science 2020-04-22 Mahdi Fahmideh , Mohsen Sharifi , Pooyan Jamshidi

This paper investigates downlink radio resource management (RRM) in millimeter-wave systems with codebook-based hybrid beamforming in a single cell. We consider a practical but often overlooked multi-channel scenario where the base station…

Networking and Internet Architecture · Computer Science 2024-10-28 Yuan Quan , Shahram Shahsavari , Catherine Rosenberg

Growing renewable penetration introduces substantial uncertainty into power system operations, necessitating frequent adaptation of dispatch objectives and constraints and challenging expertise-intensive, near-real-time modeling workflows.…

Systems and Control · Electrical Eng. & Systems 2026-05-25 Chao Shen , Zihan Guo , Xu Wan , Zhenghao Yang , Yifan Zhang , Wengi Huang , Jie Song , Zongyan Zhang , Mingyang Sun

In this paper, we compare the resource allocation fairness of uplink communications between non-orthogonal multiple access (NOMA) schemes and orthogonal multiple access (OMA) schemes. Through characterizing the contribution of the…

Information Theory · Computer Science 2017-03-16 Zhiqiang Wei , Jiajia Guo , Derrick Wing Kwan Ng , Jinhong Yuan

In this paper, we study resource allocation for downlink orthogonal frequency division multiple access (OFDMA) systems with the objective to enable ultra-reliable low latency communication (URLLC). To meet the stringent delay requirements…

Information Theory · Computer Science 2019-01-18 Walid R. Ghanem , Vahid Jamali , Yan Sun , Robert Schober

Delta-orthogonal multiple access (D-OMA) has been recently investigated as a potential technique to enhance the spectral efficiency in the sixth-generation (6G) networks. D-OMA enables partial overlapping of the adjacent sub-channels that…

Information Theory · Computer Science 2024-10-28 Ramin Hashemi , Hamzeh Beyranvand , Mohammad Robat Mili , Ata Khalili , Hina Tabassum , Derrick Wing Kwan Ng

In a full-duplex (FD) multi-user network, the system performance is not only limited by the self-interference but also by the co-channel interference due to the simultaneous uplink and downlink transmissions. Joint design of the…

Information Theory · Computer Science 2019-04-09 Xiaozhou Zhang , Tsung-Hui Chang , Ya-Feng Liu , Chao Shen , Gang Zhu

A whole suite of innovative technologies and architectures have emerged in response to the rapid growth of wireless traffic. This paper studies an integrated network design that boosts system capacity through cooperation between wireless…

Information Theory · Computer Science 2022-12-22 Trinh Van Chien , Eva Lagunas , Tiep M. Hoang , Symeon Chatzinotas , Björn Ottersten , Lajos Hanzo

In this paper, we apply angle-domain Doppler compensation for high-mobility wideband massive multi-input multi-output (MIMO) uplink transmission. The time-varying multipath channel is considered between high-speed terminal and static base…

Information Theory · Computer Science 2018-07-20 Wei Guo , Weile Zhang , Pengcheng Mu , Feifei Gao , Hai Lin

Uplink synchronization in orthogonal frequency-division multiple-access (OFDMA) systems is a challenging task. In IEEE 802.16-based networks, users that intend to establish a communication link with the base station must go through a…

Information Theory · Computer Science 2009-03-18 Michele Morelli , Luca Sanguinetti , H. Vincent Poor

Smart factories need to support the simultaneous communication of multiple industrial Internet-of-Things (IIoT) devices with ultra-reliability and low-latency communication (URLLC). Meanwhile, short packet transmission for IIoT applications…

Information Theory · Computer Science 2022-11-23 Qihao Peng , Hong Ren , Cunhua Pan , Nan Liu , Maged Elkashlan

This paper proposes an uplink optical wireless communication (OWC) link design that can be used by data centers to support communication in spine and leaf architectures between the top of rack leaf switches and large spine switches whose…

Signal Processing · Electrical Eng. & Systems 2021-11-01 Abrar S. Alhazmi , Sanaa H. Mohamed , Osama Z. Alsulami , T. E. H. El-Gorashi , Jaafar M. H. Elmirghani

Refractive metasurfaces (RMTSs) offer a promising solution to improve energy efficiency of wireless systems. To address the limitations of single-layer RMTS, stacked intelligent metasurfaces (SIMs), which form the desired precoder and…

Signal Processing · Electrical Eng. & Systems 2024-09-27 Maryam Rezvani , Raviraj Adve , Akram bin Sediq , Amr El-Keyi

In this paper, we investigate power efficient resource allocation algorithm design for multiuser wireless communication systems employing a full-duplex (FD) radio base station for serving multiple half-duplex (HD) downlink and uplink users…

Information Theory · Computer Science 2016-11-17 Yan Sun , Derrick Wing Kwan Ng , Robert Schober

Verifying hardware designs in embedded systems is crucial but often labor-intensive and time-consuming. While existing solutions have improved automation, they frequently rely on unrealistic assumptions. To address these challenges, we…

Hardware Architecture · Computer Science 2024-11-26 Yuchen Hu , Junhao Ye , Ke Xu , Jialin Sun , Shiyue Zhang , Xinyao Jiao , Dingrong Pan , Jie Zhou , Ning Wang , Weiwei Shan , Xinwei Fang , Xi Wang , Nan Guan , Zhe Jiang