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Wireless charging coupled with computation offloading in edge networks offers a promising solution for realizing power-hungry and computation intensive applications on user devices. We consider a multi-access edge computing (MEC) system…

Signal Processing · Electrical Eng. & Systems 2020-12-14 Rafia Malik , Mai Vu

Energy-efficient design is of crucial importance in wireless internet of things (IoT) networks. In order to serve massive users while achieving an energy-efficient operation, an intelligent reflecting surface (IRS) assisted mobile edge…

Systems and Control · Electrical Eng. & Systems 2021-09-22 Qun Wang , Fuhui Zhou , Han Hu , Rose Qingyang Hu

Mobile edge computing (MEC) provides users with a high quality experience (QoE) by placing servers with rich services close to the end users. Compared with local computing, MEC can contribute to energy saving, but results in increased…

Networking and Internet Architecture · Computer Science 2020-08-24 JunJie Yu , Han Wang , Mingxiong Zhao , WenTao Li , HuiQi Bao , Li Yin , Mi Wu

Non-orthogonal multiple access (NOMA) technique has sparked a growing research interest due to its ability to enhance the overall spectral efficiency of wireless systems. In this paper, we investigate the pairwise error probability (PEP)…

Signal Processing · Electrical Eng. & Systems 2018-04-12 Lina Bariah , Arafat Al-Dweik , Sami Muhaidat

In this work, we investigate the physical layer security (PLS) of ambient backscatter communication non-orthogonal multiple access (AmBC-NOMA) networks where non-colluding eavesdroppers (Eves) are randomly distributed. In the proposed…

Systems and Control · Electrical Eng. & Systems 2024-12-10 Xinyue Pei , Xingwei Wang , Min Huang , Yingyang Chen , Xiaofan Li , Theodoros A. Tsiftsis

In this paper, we investigate the physical layer security in downlink of Power Domain Non Orthogonal Multiple Access based heterogeneous cellular network in presence of multiple eavesdroppers. Our aim is to maximize the sum secrecy rate of…

Cryptography and Security · Computer Science 2018-06-07 Moslem Forouzesh , Paeiz Azmi , Nader Mokari , Kai Kit Wong

Non-orthogonal multiple access (NOMA) is considered to be one of the best candidates for future networks due to its ability to serve multiple users using the same resource block. Although early studies have focused on transmission…

Signal Processing · Electrical Eng. & Systems 2019-07-15 Furqan Jameel , Wali Ullah Khan , Zheng Chang , Tapani Ristaniemi , Ju Liu

Resource allocation is investigated for offloading computational-intensive tasks in multi-hop mobile edge computing (MEC) system. The envisioned system has both the cooperative access points (AP) with the computing capability and the MEC…

Information Theory · Computer Science 2021-04-27 Mohammed S. Al-Abiad , Md. Zoheb Hassan , Md. Jahangir Hossain

In this paper, we study the resource allocation algorithm design for multiple-input single-output (MISO) multicarrier non-orthogonal multiple access (MC-NOMA) systems, in which a full-duplex base station serves multiple half-duplex uplink…

Information Theory · Computer Science 2017-10-05 Yan Sun , Derrick Wing Kwan Ng , Jun Zhu , Robert Schober

In this paper, we focus on securing the confidential information of massive multiple-input multiple-output (MIMO) non-orthogonal multiple access (NOMA) networks by exploiting artificial noise (AN). An uplink training scheme is first…

Information Theory · Computer Science 2019-03-15 Ming Zeng , Nam-Phong Nguyen , Octavia A. Dobre , H. Vincent Poor

When considering the future generation wireless networks, non-orthogonal multiple access (NOMA) represents a viable multiple access technique for improving the spectral efficiency. The basic performance of NOMA is often enhanced using…

Signal Processing · Electrical Eng. & Systems 2019-02-18 Haitham Al-Obiedollah , Kanapathippillai Cumanan , Jeyarajan Thiyagalingam , Alister G. Burr , Zhiguo Ding , Octavia A. Dobre

Mobile-edge computing (MEC) is an emerging technology for enhancing the computational capabilities of mobile devices and reducing their energy consumption via offloading complex computation tasks to the nearby servers. Multiuser MEC at…

Information Theory · Computer Science 2018-11-20 Zezu Liang , Yuan Liu , Tat-Ming Lok , Kaibin Huang

Observing the significance of spectrally-efficient secure non-orthogonal multiple access (NOMA), this paper proposes a novel quality of service (QoS) aware secure NOMA protocol that maximizes secrecy fairness among untrusted users.…

Information Theory · Computer Science 2021-04-01 Sapna Thapar , Deepak Mishra , Ravikant Saini

This paper considers the security issue of the fifth-generation (5G) wireless networks with massive connections, where multiple eavesdroppers aim to intercept the confidential messages through active eavesdropping. To realize secure massive…

Information Theory · Computer Science 2018-02-23 Xiaoming Chen , Zhaoyang Zhang , Caijung Zhong , Derrick Wing Kwan Ng , Rundong Jia

This letter proposes a novel pinching antenna systems (PASS) enabled non-orthogonal multiple access (NOMA) multi-access edge computing (MEC) framework. An optimization problem is formulated to minimize the maximum task delay by optimizing…

Signal Processing · Electrical Eng. & Systems 2026-01-16 Yuan Ai , Xidong Mu , Pengbo Si , Yuanwei Liu

This work investigates the covertness and security performance of Internet-of-Things (IoTs) networks under Rayleigh fading environments. Specifically, a cellular source transmits covert information to cell-edge users with the assistance of…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Thai-Hoc Vu , Anh-Tu Le , Ngo Hoang Tu , Tan N. Nguyen , Miroslav Voznak

A fundamental objective of the forthcoming sixth-generation wireless networks is to concurrently serve a vast array of devices many of which, such as Internet-of-Things (IoT) sensors, are projected to have low power requirements or even…

Signal Processing · Electrical Eng. & Systems 2024-05-14 Athanasios P. Chrysologou , Nestor D. Chatzidiamantis , Alexandros-Apostolos A. Boulogeorgos , Zhiguo Ding

Mobile edge computing (MEC) is a new paradigm that provides cloud computing services at the edge of networks. To achieve better performance with limited computing resources, peer offloading between cooperative edge servers (e.g. MEC-…

Networking and Internet Architecture · Computer Science 2020-09-04 Xingqiu He , Sheng Wang

It is a big challenge for resource-limited mobile devices (MDs) to execute various complex and energy-consumed mobile applications. Fortunately, as a novel computing paradigm, edge computing (MEC) can provide abundant computing resources to…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-07-05 Binbin Huang , Zhongjin Lia , Peng Tang , Shangguang Wang , Jun Zhao , Haiyang Hua , Wanqing Lia , Victor Chang

Mobile Edge Computing (MEC) enables rich services in close proximity to the end users to provide high quality of experience (QoE) and contributes to energy conservation compared with local computing, but results in increased communication…

Networking and Internet Architecture · Computer Science 2020-03-31 Mingxiong Zhao , Jun-Jie Yu , Wen-Tao Li , Di Liu , Shaowen Yao , Wei Feng , Changyang She , Tony Q. S. Quek