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Hybrid non-orthogonal multiple access (H-NOMA) has recently received significant attention as a general framework of multiple access, where both conventional orthogonal multiple access (OMA) and pure NOMA are its special cases. This paper…

Information Theory · Computer Science 2024-03-26 Zhiguo Ding

Non-orthogonal multiple access (NOMA) is envisioned to be one of the most beneficial technologies for next generation wireless networks due to its enhanced performance compared to other conventional radio access techniques. Although the…

Information Theory · Computer Science 2017-11-27 Rukhsana Ruby , Shuxin Zhong , Hailiang Yang , Kaishun Wu

This article investigates a non-orthogonal multiple access (NOMA) enhanced Internet of Things (IoT) network. In order to provide connectivity, a novel cluster strategy is proposed, where multiple devices can be served simultaneously. Two…

Information Theory · Computer Science 2020-01-14 Tianwei Hou , Yuanwei Liu , Zhengyu Song , Xin Sun , Yue Chen

Vehicular edge computing (VEC) becomes a promising paradigm for the development of emerging intelligent transportation systems. Nevertheless, the limited resources and massive transmission demands bring great challenges on implementing…

Networking and Internet Architecture · Computer Science 2022-11-21 Xincao Xu , Kai Liu , Penglin Dai , Feiyu Jin , Hualing Ren , Choujun Zhan , Songtao Guo

Ultra-dense networks are widely regarded as a promising solution to explosively growing applications of Internet-of-Things (IoT) mobile devices (IMDs). However, complicated and severe interferences need to be tackled properly in such…

Information Theory · Computer Science 2023-03-14 Tianqing Zhou , Yanyan Fu , Dong Qin , Xuefang Nie , Nan Jiang , Chunguo Li

We consider a downlink multiuser visible light communications (VLC) network where users randomly change their location and vertical orientation. The non-orthogonal multiple access (NOMA) strategy is adopted to serve multiple users…

Information Theory · Computer Science 2019-02-27 Yavuz Yapici , Ismail Guvenc

This paper considers non-orthogonal multiple access (NOMA) assisted mobile edge computing (MEC), where the power and time allocation is jointly optimized to reduce the energy consumption of offloading. Closed-form expressions for the…

Information Theory · Computer Science 2018-07-18 Zhiguo Ding , Jie Xu , Octavia A. Dobre , H. Vincent Poor

Incorporating mobile edge computing (MEC) in the Internet of Things (IoT) enables resource-limited IoT devices to offload their computation tasks to a nearby edge server. In this paper, we investigate an IoT system assisted by the MEC…

Systems and Control · Electrical Eng. & Systems 2021-11-10 Xuming An , Rongfei Fan , Han Hu , Ning Zhang , Saman Atapattu , Theodoros A. Tsiftsis

Mobile edge computing (MEC) is a promising technology to meet the increasing demands and computing limitations of complex Internet of Things (IoT) devices. However, implementing MEC in urban environments can be challenging due to factors…

Networking and Internet Architecture · Computer Science 2025-02-03 Subhrajit Barick , Chetna Singhal

In this paper, we propose a cache-aided non-orthogonal multiple access (NOMA) scheme for spectrally efficient downlink transmission. The proposed scheme not only reaps the benefits associated with NOMA and caching, but also exploits the…

Information Theory · Computer Science 2019-06-26 Lin Xiang , Derrick Wing Kwan Ng , Xiaohu Ge , Zhiguo Ding , Vincent W. S. Wong , Robert Schober

Incorporating mobile edge computing (MEC) in Internet of Things (IoT) enables resource-limited IoT devices to offload their computation tasks to a nearby edge server. In this paper, we investigate an IoT system assisted by the MEC technique…

Information Theory · Computer Science 2021-12-30 Xuming An , Rongfei Fan , Han Hu , Ning Zhang , Saman Atapattu , Theodoros A. Tsiftsis

This letter investigates computation offloading and transmit precoding co-design for multi-access edge computing (MEC), where multiple MEC users (MUs) equipped with multiple antennas access the MEC server in a non-orthogonal multiple access…

Information Theory · Computer Science 2023-11-08 Deyou Zhang , Meng Wang , Shuo Shi , Ming Xiao

As the volume of image data grows, data-oriented cloud computing in Internet of Video Things (IoVT) systems encounters latency issues. Task-oriented edge computing addresses this by shifting data analysis to the edge. However, limited…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Jiaqi Wu , Simin Chen , Zehua Wang , Wei Chen , Zijian Tian , F. Richard Yu , Victor C. M. Leung

In this paper, we investigate the performance of an intelligent omni-surface (IOS) assisted downlink non-orthogonal multiple access (NOMA) network with phase quantization errors and channel estimation errors, where the channels related to…

Information Theory · Computer Science 2022-09-13 Tianxiong Wang , Mihai-Alin Badiu , Gaojie Chen , Justin P. Coon

Orthogonal Frequency Division Multiple Access (OFDMA) as well as other orthogonal multiple access techniques fail to achieve the system capacity limit in the uplink due to the exclusivity in resource allocation. This issue is more prominent…

Information Theory · Computer Science 2017-05-12 Mohammed Al-Imari , Pei Xiao , Muhammad Ali Imran , Rahim Tafazolli

Non-orthogonal multiple access (NOMA) enables power-domain multiplexing via successive interference cancellation (SIC) and has been viewed as a promising technology for 5G communication. The full benefit of NOMA depends on resource…

Information Theory · Computer Science 2017-07-21 Jianyue Zhu , Jiaheng Wang , Yongming Huang , Shiwen He , Xiaohu You , Luxi Yang

To support Machine Type Communications (MTC) in next generation mobile networks, NarrowBand-IoT (NB-IoT) has been released by the Third Generation Partnership Project (3GPP) as a promising solution to provide extended coverage and low…

Networking and Internet Architecture · Computer Science 2018-12-24 Ali Shahini , Nirwan Ansari

This article investigates the energy efficiency issue in non-orthogonal multiple access (NOMA)-enhanced Internet-of-Things (IoT) networks, where a mobile unmanned aerial vehicle (UAV) is exploited as a flying base station to collect data…

Signal Processing · Electrical Eng. & Systems 2021-03-17 Jingjing Zhao , Kaiquan Cai , Yanbo Zhu

Non-orthogonal multiple access (NOMA) is a key technology to enable massive machine type communications (mMTC) in 5G networks and beyond. In this paper, NOMA is applied to improve the random access efficiency in high-density…

Networking and Internet Architecture · Computer Science 2024-10-28 Sami Khairy , Prasanna Balaprakash , Lin X. Cai , H. Vincent Poor

A novel framework is proposed for cellular offloading with the aid of multiple unmanned aerial vehicles (UAVs), while non-orthogonal multiple access (NOMA) technique is employed at each UAV to further improve the spectrum efficiency of the…

Networking and Internet Architecture · Computer Science 2020-12-01 Ruikang Zhong , Xiao Liu , Yuanwei Liu , Yue Chen