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This paper focuses on a new path division multiple access (PDMA) for both uplink (UL) and downlink (DL) massive multiple-input multiple-output network over a high mobility scenario, where the orthogonal time frequency space (OTFS) is…

Signal Processing · Electrical Eng. & Systems 2020-03-19 Muye Li , Shun Zhang , Feifei Gao , Pingzhi Fan , Octavia A. Dobre

Vertical packed columns are widely used in absorption, stripping and distillation processes. Flooding will occur in the vertical packed columns as a result of excessive liquid accumulation, which reduces mass transfer efficiency and causes…

Fluid Dynamics · Physics 2021-11-18 Zhigang Li , Yuan Chen , Yunjie Yang , Chang Liu , Mathieu Lucquiaud , Jiabin Jia

We study a full-duplex (FD) cell-free massive MIMO system where distributed access points (APs) operate in FD mode while user equipments (UEs) remain half-duplex. Although simultaneous uplink (UL) and downlink (DL) transmissions improve…

Signal Processing · Electrical Eng. & Systems 2026-05-11 Bikshapathi Gouda , Antti Tölli

Developing of an effective flow control algorithm to avoid congestion is a hot topic in computer network society. This document gives a mathematical model for general network at the beginning, and then discrete control theory is proposed as…

Networking and Internet Architecture · Computer Science 2021-07-05 G. Millán

In this paper, we study the joint power control and scheduling in uplink massive multiple-input multiple-output (MIMO) systems with random data arrivals. The data is generated at each user according to an individual stochastic process.…

Networking and Internet Architecture · Computer Science 2019-04-10 Zheng Chen , Emil Björnson , Erik G. Larsson

This paper studies optimum power control and sum-rate scaling laws for the distributed cognitive uplink. It is first shown that the optimum distributed power control policy is in the form of a threshold based water-filling power control.…

Information Theory · Computer Science 2013-04-09 Ehsan Nekouei , Hazer Inaltekin , Subhrakanti Dey

The TD-LTE system is envisaged to adopt dynamic time division duplexing (TDD) transmissions for small cells to adapt their communication service to the fast variation of downlink (DL) and uplink (UL) traffic demands. However, different…

Networking and Internet Architecture · Computer Science 2015-03-27 Qinqin Chen , Hui Zhao , Lin Li , Hang Long , Jianquan Wang , Xiaoyue Hou

To cope with the explosive bandwidth demand, significant progress has been made in the ITU-T standardization sector to define a higher-speed passive optical network (PON) with a 50Gb/s line rate. Recently, 50G PON becomes mature gradually,…

Networking and Internet Architecture · Computer Science 2023-08-03 Ji Zhou , Zhenping Xing , Haide Wang , Kuo Zhang , Xi Chen , Qiguang Feng , Keshuang Zheng , Yijia Zhao , Zhen Dong , Tao Gui , Zhicheng Ye , Liangchuan Li

Compressor stations are the heart of every high-pressure gas transport network. Located at intersection areas of the network they are contained in huge complex plants, where they are in combination with valves and regulators responsible for…

Optimization and Control · Mathematics 2022-06-14 Felix Hennings , Lovis Anderson , Kai Hoppmann-Baum , Mark Turner , Thorsten Koch

Coflow provides a key application-layer abstraction for capturing communication patterns, enabling the efficient coordination of parallel data flows to reduce job completion times in distributed systems. Modern data center networks (DCNs)…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-04-10 Xin Wang , Hong Shen , Hui Tian , Dong Wang

The rise in low Earth orbit (LEO) satellite Internet services has led to increasing demand, often exceeding available data rates and compromising the quality of service. While deploying more satellites offers a short-term fix, designing…

Networking and Internet Architecture · Computer Science 2026-01-28 Olivier Bélanger , Jean-Luc Lupien , Olfa Ben Yahia , Stéphane Martel , Antoine Lesage-Landry , Gunes Karabulut Kurt

Delay and Disruption Tolerant Networks (DTNs) may lack continuous network connectivity. Routing in DTNs is thus a challenge since it must handle network partitioning, long delays, and dynamic topology. Meanwhile, routing protocols of the…

Networking and Internet Architecture · Computer Science 2017-06-23 Lei You , Jianbo Li , Changjiang We , Chenqu Dai

Precise control of multiphase microfluidic flows underpins applications ranging from chemical processing to biomedical diagnostics. We investigate the response of a liquid--liquid coflow in a rectangular microchannel to an externally…

Fluid Dynamics · Physics 2026-04-08 D. Ghosh , S. Z. Hoque , T. Sujith , N. S. Satpathi , L. Malik , A. K. Sen

We study an optimal-control problem of polling systems with large switchover times, when a holding cost is incurred on the queues. In particular, we consider a stochastic network with a single server that switches between several buffers…

Probability · Mathematics 2020-09-01 Yue Hu , Jing Dong , Ohad Perry

This paper proposes efficient multiple-access schemes for large wireless networks based on the transmitters' buffer state information and their transceivers' duplex transmission capability. First, we investigate the case of half-duplex…

Networking and Internet Architecture · Computer Science 2016-12-20 Ahmed El Shafie , Naofal Al-Dhahir , Ridha Hamila

The primary goal of Optimal Power Flow (OPF) is to optimize the operation of a power system while meeting the demand and adhering to operational constraints. This paper presents a new approach for AC OPF. First, the approach constructs a…

Optimization and Control · Mathematics 2025-12-16 Mohammed N. Khamees , Kai Sun

To meet the timing requirements of interactive applications, the no-frills congestion-agnostic transport protocols like UDP are increasingly deployed side-by-side in the same network with congestion-responsive TCP. In cloud platforms, even…

Networking and Internet Architecture · Computer Science 2022-09-13 Ahmed M. Abdelmoniem , Brahim Bensaou

During overload, most networks drop packets due to buffer unavailability. The resulting timeouts at the source provide an implicit mechanism to convey congestion signals from the network to the source. On a timeout, a source should not only…

Networking and Internet Architecture · Computer Science 2016-11-15 R. Jain

Closed-loop flow control protocols, such as the prominent implementation TCP, are prevalent in the Internet, today. TCP has continuously been improved for greedy traffic sources to achieve high throughput over networks with large bandwidth…

Networking and Internet Architecture · Computer Science 2016-09-05 Ralf Lübben , Markus Fidler

We report on a quantum dot device design that combines the low disorder properties of undoped SiGe heterostructure materials with an overlapping gate stack in which each electrostatic gate has a dominant and unique function -- control of…

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