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In this paper, we study the resource allocation algorithm design for multiuser orthogonal frequency division multiplexing (OFDM) downlink systems with simultaneous wireless information and power transfer. The algorithm design is formulated…

信息论 · 计算机科学 2016-11-17 Derrick Wing Kwan Ng , Ernest S. Lo , Robert Schober

In this letters, an energy-efficient integrated sensing and communication (ISAC) for space-air-ground integrated network (SAGIN)-based Internet of Things (IoT) systems is proposed to facilitate wide coverage and real-time 6G services. For…

系统与控制 · 电气工程与系统科学 2025-09-11 Sooyeob Jung , Seongah Jeong , Jinkyu Kang

In this paper, we study a mobile edge computing (MEC) system in which the mobile device is assisted by a base station (BS) and a cooperative node. The mobile device has sequential tasks to complete, whereas the cooperative node assists the…

信息论 · 计算机科学 2021-05-03 Xiangg Li , Rongfei Fan , Han Hu

This paper studies the problem of massive Internet of things (IoT) access in beyond fifth generation (B5G) networks using non-orthogonal multiple access (NOMA) technique. The problem involves massive IoT devices grouping and power…

网络与互联网体系结构 · 计算机科学 2022-02-01 Zoubeir Mlika , Soumaya Cherkaoui

In this paper, a semantic-aware joint communication and computation resource allocation framework is proposed for mobile edge computing (MEC) systems. In the considered system, each terminal device (TD) has a computation task, which needs…

信号处理 · 电气工程与系统科学 2023-09-22 Yihan Cang , Ming Chen , Zhaohui Yang , Yuntao Hu , Yinlu Wang , Zhaoyang Zhang , Kai-Kit Wong

In an edge-cloud system, mobile devices can offload their computation intensive tasks to an edge or cloud server to guarantee the quality of service or satisfy task deadline requirements. However, it is challenging to determine where tasks…

分布式、并行与集群计算 · 计算机科学 2023-03-08 Chuanchao Gao , Aryaman Shaan , Arvind Easwaran

The ever-increasing demand for ubiquitous, continuous, and high-quality services poses a great challenge to the traditional terrestrial network. To mitigate this problem, the mobile-edge-computing-enhanced low earth orbit (LEO) satellite…

网络与互联网体系结构 · 计算机科学 2023-11-15 Yantong Wang , Chuanfen Feng , Jiande Sun

Owing to the resource-constrained feature of Internet of Things (IoT) devices, offloading tasks from IoT devices to the nearby mobile edge computing (MEC) servers can not only save the energy of IoT devices but also reduce the response time…

分布式、并行与集群计算 · 计算机科学 2022-11-01 Zeinab Akhavan , Mona Esmaeili , Babak Badnava , Mohammad Yousefi , Xiang Sun , Michael Devetsikiotis , Payman Zarkesh-Ha

Limited computing resources of internet-of-things (IoT) nodes incur prohibitive latency in processing input data. This triggers new research opportunities toward task offloading systems where edge servers handle intensive computations of…

信息论 · 计算机科学 2022-07-29 Sangwon Hwang , Hoon Lee , Juseong Park , Inkyu Lee

With the development of the Internet of Things (IoT) and the birth of various new IoT devices, the capacity of massive IoT devices is facing challenges. Fortunately, edge computing can optimize problems such as delay and connectivity by…

分布式、并行与集群计算 · 计算机科学 2023-08-02 Shihao Shen , Yiwen Han , Xiaofei Wang , Yan Wang

In this paper, we consider a single-cell multi-user orthogonal frequency division multiple access (OFDMA) network with one unmanned aerial vehicle (UAV), which works as an amplify-and-forward relay to improve the quality-of-service (QoS) of…

信息论 · 计算机科学 2021-04-23 Shuhao Zeng , Hongliang Zhang , Boya Di , Lingyang Song

The heterogeneity of the Internet-of-things (IoT) network can be exploited as a dynamic computational resource environment for many devices lacking computational capabilities. A smart mechanism for allocating edge and mobile computers to…

社会与信息网络 · 计算机科学 2020-07-09 Abdullah Khanfor , Raby Hamadi , Hakim Ghazzai , Ye Yang , Mohammad R. Haider , Yehia Massoud

This paper studies a new mobile edge computing (MEC) setup where an unmanned aerial vehicle (UAV) is served by cellular ground base stations (GBSs) for computation offloading. The UAV flies between a give pair of initial and final…

信息论 · 计算机科学 2018-03-13 Xiaowen Cao , Jie Xu , Rui Zhang

Facing the trend of merging wireless communications and multi-access edge computing (MEC), this article studies computation offloading in the beyond fifth-generation networks. To address the technical challenges originating from the…

分布式、并行与集群计算 · 计算机科学 2020-07-17 Xianfu Chen , Celimuge Wu , Zhi Liu , Ning Zhang , Yusheng Ji

With the development of the Internet of Things (IoT), certain IoT devices have the capability to not only accomplish their own tasks but also simultaneously assist other resource-constrained devices. Therefore, this paper considers a…

分布式、并行与集群计算 · 计算机科学 2023-12-05 Yang Li , Xinlei Ge , Bo Lei , Xing Zhang , Wenbo Wang

This paper presents a study of an integrated satellite-terrestrial network, where Low-Earth-Orbit (LEO) satellites are used to provide the backhaul link between base stations (BSs) and the core network. The mobility of LEO satellites raises…

信号处理 · 电气工程与系统科学 2023-03-21 Hung Nguyen-Kha , Vu Nguyen Ha , Eva Lagunas , Symeon Chatzinotas , Joel Grotz

This paper considers a wireless powered multiuser mobile edge computing (MEC) system, where a multi-antenna access point (AP) employs the radio-frequency (RF) signal based wireless power transfer (WPT) to charge a number of distributed…

信息论 · 计算机科学 2019-02-26 Feng Wang , Hong Xing , Jie Xu

The increasing demand for massive connectivity and high data rates has made the efficient use of existing spectrum resources an increasingly challenging problem. Non-orthogonal multiple access (NOMA) is a potential solution for future…

In this paper, we study power-efficient resource allocation for multicarrier non-orthogonal multiple access (MC-NOMA) systems. The resource allocation algorithm design is formulated as a non-convex optimization problem which jointly designs…

信息论 · 计算机科学 2017-05-18 Zhiqiang Wei , Derrick Wing Kwan Ng , Jinhong Yuan , Hui-Ming Wang

In the era of the sixth generation (6G) and industrial Internet of Things (IIoT), an industrial cyber-physical system (ICPS) drives the proliferation of sensor devices and computing-intensive tasks. To address the limited resources of IIoT…

网络与互联网体系结构 · 计算机科学 2024-12-03 Geng Sun , Jiaxu Wu , Zemin Sun , Long He , Jiacheng Wang , Dusit Niyato , Abbas Jamalipour , Shiwen Mao