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Over-the-air computation (AirComp), which leverages the superposition property of wireless multiple-access channel (MAC) and the mathematical tool of function representation, has been considered as a promising technique for effective…

Information Theory · Computer Science 2024-10-30 Xin Zang , Wanchun Liu , Yonghui Li , Branka Vucetic

This paper investigates a six-dimensional movable antenna (6DMA)-aided cell-free multi-user multiple-input multiple-output (MIMO) communication system. In this system, each distributed access point (AP) can flexibly adjust its array…

Signal Processing · Electrical Eng. & Systems 2026-01-09 Yichi Zhang , Yuchen Zhang , Wenyan Ma , Lipeng Zhu , Jianquan Wang , Wanbin Tang , Rui Zhang

This paper investigates covert data transmission within a multiple-input multiple-output (MIMO) over-the-air computation (AirComp) network, where sensors transmit data to the access point (AP) while guaranteeing covertness to the warden…

Signal Processing · Electrical Eng. & Systems 2024-03-18 Junteng Yao , Tuo Wu , Ming Jin , Cunhua Pan , Quanzhong Li , Jinhong Yuan

For future Internet of Things (IoT)-based Big Data applications (e.g., smart cities/transportation), wireless data collection from ubiquitous massive smart sensors with limited spectrum bandwidth is very challenging. On the other hand, to…

Information Theory · Computer Science 2024-10-30 Wanchun Liu , Xin Zang , Yonghui Li , Branka Vucetic

Over-the-air computation (AirComp) is a known technique in which wireless devices transmit values by analog amplitude modulation so that a function of these values is computed over the communication channel at a common receiver. The…

Signal Processing · Electrical Eng. & Systems 2023-03-21 Saeed Razavikia , Jose Mairton Barros da Silva , Carlo Fischione

The effective utilization of unlicensed spectrum is regarded as an important direction to enable the massive access and broad coverage for next-generation wireless local area network (WLAN). Due to the crowded spectrum occupancy and dense…

Signal Processing · Electrical Eng. & Systems 2024-12-17 Xiangyu Pi , Lipeng Zhu , Haobin Mao , Zhenyu Xiao , Xiang-Gen Xia , Rui Zhang

This paper presents the first orthogonal frequency-division multiplexing(OFDM)-based digital over-the-air computation (AirComp) system for wireless federated edge learning, where multiple edge devices transmit model data simultaneously…

Information Theory · Computer Science 2023-07-06 Lizhao You , Xinbo Zhao , Rui Cao , Yulin Shao , Liqun Fu

This paper studies a pinching antenna system (PAS)-assisted hybrid uplink architecture that integrates over-the-air computation (AirComp) and non-orthogonal multiple access (NOMA) to simultaneously support distributed data aggregation and…

Signal Processing · Electrical Eng. & Systems 2026-04-15 Saeid Pakravan , Imene Trigui , Wessam Ajib , Wei-Ping Zhu

In this paper, we propose a novel polarized six-dimensional movable antenna (P-6DMA) to enhance the performance of wireless communication cost-effectively. Specifically, the P-6DMA enables polarforming by adaptively tuning the antenna's…

Information Theory · Computer Science 2025-06-06 Xiaodan Shao , Qijun Jiang , Derrick Wing Kwan Ng , Naofal Al-Dhahir

In this paper, we propose a movable antenna (MA) enhanced scheme for wireless powered mobile edge computing (WP-MEC) system, where the hybrid access point (HAP) equipped with multiple MAs first emits wireless energy to charge wireless…

Information Theory · Computer Science 2024-04-30 Pengcheng Chen , Yuxuan Yang , Bin Lyu , Zhen Yang , Abbas Jamalipour

Movable antenna (MA) technology, which can reconfigure wireless channels by flexibly moving antenna positions in a specified region, has great potential for improving communication performance. In this paper, we consider a new setup of…

Information Theory · Computer Science 2024-05-08 Guojie Hu , Qingqing Wu , Donghui Xu , Kui Xu , Jiangbo Si , Yunlong Cai , Naofal Al-Dhahir

Movable antenna (MA) technology offers promising potential to enhance wireless communication by allowing flexible antenna movement. To maximize spatial degrees of freedom (DoFs), larger movable regions are required, which may render the…

Information Theory · Computer Science 2024-10-01 Lipeng Zhu , Wenyan Ma , Zhenyu Xiao , Rui Zhang

Sensing is envisioned as a key network function of the 6G mobile networks. Artificial intelligence (AI)-empowered sensing fuses features of multiple sensing views from devices distributed in edge networks for the edge server to perform…

Information Theory · Computer Science 2023-02-21 Zhiyan Liu , Qiao Lan , Anders E. Kalør , Petar Popovski , Kaibin Huang

This paper investigates a fluid antenna (FA) array-enhanced over-the-air computation (AirComp) system in the presence of hardware impairments (HWIs), exploiting the new degrees of freedom offered by reconfigurable antenna positioning. To…

Signal Processing · Electrical Eng. & Systems 2025-12-08 Zilong Li , Jianxin Dai , Zhaohui Yang , Zhaoyang Zhang , Kai-Kit Wong , Zhiyang Li , Shunkuan Cheng

Due to its high communication efficiency, over-the-air computation (AirComp) has been expected to carry out various computing tasks in the next-generation wireless networks. However, up to now, most applications of AirComp are explored in…

Signal Processing · Electrical Eng. & Systems 2023-11-14 Xin Xie , Cunqinq Hua , Jianan Hong , Yuejun Wei

Over-the-air computation (AirComp) is a promising technology converging communication and computation over wireless networks, which can be particularly effective in model training, inference, and more emerging edge intelligence…

Information Theory · Computer Science 2024-08-30 Li Qiao , Zhen Gao , Mahdi Boloursaz Mashhadi , Deniz Gündüz

Movable antennas (MAs) enhance flexibility in beamforming gain and interference suppression by adjusting position within certain areas of the transceivers. In this paper, we propose an MA-assisted integrated sensing and communication…

Signal Processing · Electrical Eng. & Systems 2025-01-03 Chengjun Jiang , Chensi Zhang , Chongwen Huang , Jianhua Ge , Dusit Niyato , Chau Yuen

Future intelligent systems will consist of a massive number of battery-less sensors, where quick and accurate aggregation of sensor data will be of paramount importance. Over-the-air computation (AirComp) is a promising technology wherein…

Networking and Internet Architecture · Computer Science 2020-01-14 Amin Farajzadeh , Ozgur Ercetin , Halim Yanikomeroglu

This article investigates the integration of movable antennas (MAs) into multicast communication systems. By discretizing the motion of the MAs, a novel MA-assisted multicast transmission architecture is formulated. An alternating…

Signal Processing · Electrical Eng. & Systems 2025-05-16 Zhenqiao Cheng , Nanxi Li , Jianchi Zhu , Chongjun Ouyang , Xingqi Zhang

Over the air computation (AirComp) is a promising technique that addresses big data collection and fast wireless data aggregation. However, in a network where wireless communication and AirComp coexist, mutual interference becomes a…

Signal Processing · Electrical Eng. & Systems 2025-07-08 Xunqiang Lan , Xiao Tang , Ruonan Zhang , Bin Li , Yichen Wang , Dusit Niyato , Zhu Han