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To coexist with Wi-Fi friendly, a standalone long-term evolution network over unlicensed spectrum (LTE-U) under listen-before-talk (LBT) mechanism can only access channel in a random and intermittent way, which results in random and…

Networking and Internet Architecture · Computer Science 2018-10-15 Hangguan Shan , Taojie Qin , Guanding Yu , Lin X. Cai , Yu Cheng , Tony Q. S. Quek

WiFi backscatter tags can enable direct connectivity of IoT devices with commodity WiFi hardware at low power. However, most state of the art backscatter tag implementations in this area have limited transmitter to tag range, are not…

Signal Processing · Electrical Eng. & Systems 2022-10-17 Manideep Dunna , Shihkai Kuo , Akshit Agarwal , Patrick Mercier , Dinesh Bharadia

In this paper, we focus on 1-bit precoding for large-scale antenna systems in the downlink based on the concept of constructive interference (CI). By formulating the optimization problem that aims to maximize the CI effect subject to the…

Signal Processing · Electrical Eng. & Systems 2020-02-14 Ang Li , Fan Liu , Christos Masouros , Yonghui Li , Branka Vucetic

Full-duplex (FD) technology is gaining popularity for integration into a wide range of wireless networks due to its demonstrated potential in recent studies. In contrast to half-duplex (HD) technology, the implementation of FD in networks…

Networking and Internet Architecture · Computer Science 2024-02-09 Yonghwi Kim , Hyung-Joo Moon , Hanju Yoo , Byoungnam , Kim , Kai-Kit Wong , Chan-Byoung Chae

This paper studies the performance trade-off in a multi-user backscatter communication (BackCom) system for integrated sensing and communications (ISAC), where the multi-antenna ISAC transmitter sends excitation signals to power multiple…

Information Theory · Computer Science 2024-06-04 Yuanming Tian , Dan Wang , Chuan Huang , Wei Zhang

Knowledge of the channel state information (CSI) at the transmitter side is one of the primary sources of information that can be used for the efficient allocation of wireless resources. Obtaining downlink (DL) CSI in Frequency Division…

Signal Processing · Electrical Eng. & Systems 2019-12-03 Mohammad Sadegh Safari , Vahid Pourahmadi , Shabnam Sodagari

This paper investigates the robust transmission design (RTD) of a multi-cell device-to-device (D2D) underlaid cellular network with imperfect channel state information (CSI). The bounded model is adopted to characterize the CSI impairment…

Information Theory · Computer Science 2018-04-17 Hao Xu , Gordon L. Stüber , Wei Xu , Cunhua Pan , Jianfeng Shi , Zhaohui Yang , Ming Chen

Prediction and nullifying the interference is a challenging problem in vehicle to infrastructure scenarios . The implementation of practical V2I network is limited because of inevitability of interference due to random nature of the…

Signal Processing · Electrical Eng. & Systems 2021-02-18 Prateek Bhadauria , Ravi Kumar , Sanjay Sharma

Full-duplex communication systems have the potential to achieve significantly higher data rates and lower latency compared to their half-duplex counterparts. This advantage stems from their ability to transmit and receive data…

Signal Processing · Electrical Eng. & Systems 2023-08-14 Jungyeon Kim , Hyowon Lee , Heedong Do , Jinseok Choi , Jeonghun Park , Wonjae Shin , Yonina C. Eldar , Namyoon Lee

The integration of backscatter communication (BackCom) technology with integrated sensing and communication (ISAC) technology not only enhances the system sensing performance, but also enables low-power information transmission. This is…

Signal Processing · Electrical Eng. & Systems 2024-11-04 Zongyao Zhao , Yuhan Dong , Tiankuo Wei , Xinke Tang , Xiao-Ping Zhang , Zhenyu Liu

This paper investigates the idea of exploiting interference among the simultaneous multiuser transmissions in the downlink of multiple antennas systems. Using symbol level precoding, a new approach towards addressing the multiuser…

Information Theory · Computer Science 2015-05-11 Maha Alodeh , Symeon Chatzinotas , Bjorn Ottersten

In offline model-based optimization, we strive to maximize a black-box objective function by only leveraging a static dataset of designs and their scores. This problem setting arises in numerous fields including the design of materials,…

Computational Engineering, Finance, and Science · Computer Science 2023-03-07 Can Chen , Yingxue Zhang , Jie Fu , Xue Liu , Mark Coates

In the evolving landscape of the Internet of Things (IoT), integrating cognitive radio (CR) has become a practical solution to address the challenge of spectrum scarcity, leading to the development of cognitive IoT (CIoT). However, the…

Signal Processing · Electrical Eng. & Systems 2025-12-18 Nadia Abdolkhani , Nada Abdel Khalek , Walaa Hamouda

To date, model-based reliable communication with low latency is of paramount importance for time-critical wireless control systems. In this work, we study the downlink (DL) controller-to-actuator scheduling problem in a wireless industrial…

Networking and Internet Architecture · Computer Science 2020-05-12 Chen-Feng Liu , Mehdi Bennis

Ambient backscatter communications is an emerging paradigm and a key enabler for pervasive connectivity of low-powered wireless devices. It is primarily beneficial in the Internet of things (IoT) and the situations where computing and…

Signal Processing · Electrical Eng. & Systems 2019-06-25 Furqan Jameel , Tapani Ristaniemi , Imran Khan , Byung Moo Lee

This paper investigates the downlink channels in multi-cell multi-user interfering networks. The goal is to propose close-form designs to obtain degrees of freedom (DoF) in high SNR region for the network composed of base stations (BS) as…

Information Theory · Computer Science 2012-11-20 Haichuan Zhou , Tharm Ratnarajah

Diffusion models (DMs) have recently achieved significant success in wireless communications systems due to their denoising capabilities. The broadcast nature of wireless signals makes them susceptible not only to Gaussian noise, but also…

Information Theory · Computer Science 2025-05-27 Tong Wu , Zhiyong Chen , Dazhi He , Feng Yang , Meixia Tao , Xiaodong Xu , Wenjun Zhang , Ping Zhang

This work addresses channel estimation in multiple antenna multicell interference-limited networks. Channel state information (CSI) acquisition is vital for interference mitigation. Wireless networks often suffer from multicell…

Information Theory · Computer Science 2015-05-11 Maha Alodeh , Symeon Chatzinotas , Bjorn Ottersten

This paper focuses on robust transceiver design for throughput enhancement on the interference channel (IC), under imperfect channel state information (CSI). In this paper, two algorithms are proposed to improve the throughput of the…

Information Theory · Computer Science 2018-04-02 Ali Dalir , Hassan Aghaeinia , Mohammad Kazemi

Internet-of-Things (IoT) refers to a high-density network of low-cost low-bitrate terminals and sensors where also low energy consumption is one central feature. As the power-budget of classical receiver chains is dominated by the…

Information Theory · Computer Science 2017-04-05 Ahmet Gokceoglu , Emil Bjornson , Erik Larsson , Mikko Valkama