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This paper proposes a low-complexity iterative receiver for the recently proposed Orthogonal Chirp Division Multiplexing (OCDM) modulation scheme, where we consider a system under frequency-selective channels and constrained to channel…

Signal Processing · Electrical Eng. & Systems 2019-03-20 Roberto Bomfin , Marwa Chafii , Gerhard Fettweis

In this paper, we propose a deep learning-based signal detector called TransD3D-IM, which employs the Transformer framework for signal detection in the Dual-mode index modulation-aided three-dimensional (3D) orthogonal frequency division…

Signal Processing · Electrical Eng. & Systems 2023-09-12 Toan Gian , Tien-Hoa Nguyen , Trung Tan Nguyen , Van-Cuong Pham , Thien Van Luong

Non-orthogonal multiple access (NOMA) is capable of serving different numbers of users in the same time-frequency resource element, and this feature can be leveraged to carry additional information. In the orthogonal frequency division…

Information Theory · Computer Science 2022-10-25 Ziyi Xie , Wenqiang Yi , Xuanli Wu , Yuanwei Liu , Arumugam Nallanathan

In this paper, we investigate a key problem of Internet of Things (IoT) applications in practice. Our research objective is to optimize the transmission frequencies for a group of IoT edge devices under practical constraints. Our key…

Systems and Control · Electrical Eng. & Systems 2021-04-16 Hongde Wu , Noel E. O'Connor , Jennifer Bruton , Mingming Liu

This paper proposes orthogonal time sequency multiplexing (OTSM), a novel single carrier modulation scheme that places information symbols in the delay-sequency domain followed by a cascade of time-division multiplexing (TDM) and…

Signal Processing · Electrical Eng. & Systems 2021-06-22 Tharaj Thaj , Emanuele Viterbo , Yi Hong

Conventional orthogonal frequency division multiplexing (OFDM) waveform design in integrated sensing and communications (ISAC) systems usually selects the channels with high-frequency responses to transmit communication data, which does not…

Signal Processing · Electrical Eng. & Systems 2023-12-27 Qinghui Lu , Zhen Du , Zenghui Zhang

In this paper, we propose a novel deep learning based approach for joint channel estimation and signal detection in orthogonal frequency division multiplexing (OFDM) systems by exploring the time and frequency correlation of wireless fading…

Information Theory · Computer Science 2020-08-11 Xuemei Yi , Caijun Zhong

This paper proposes a novel and simple orthogonal faster than Nyquist (OFTN) data transmission and detection approach for a single input multiple output (SIMO) system. It is assumed that the signal having a bandwidth $B$ is transmitted…

Information Theory · Computer Science 2017-07-25 Tadilo Endeshaw Bogale , Long Bao Le , Xianbin Wang , Luc Vandendorpe

This paper analyses the statistics of the clipping noise in orthogonal frequency-division-multiplex (OFDM) based visible light Communication systems. The clipped signal is generally modelled as the summation of the scaled original signal…

Signal Processing · Electrical Eng. & Systems 2019-09-10 Nima Taherkhani , Kamran Kiasaleh

The expected operating scenarios of 5G pose a great challenge to orthogonal frequency division multiplexing (OFDM) which has poor out of band (OoB) spectral properties, stringent synchronization requirements, and large symbol duration.…

Information Theory · Computer Science 2015-06-16 Shashank Tiwari , Suvra Sekhar Das , Kalyan Kumar Bandyopadhyay

In this paper, we propose an anti-jamming communication framework for orthogonal frequency-division multiplexing (OFDM) systems under jamming attacks. To this end, we first develop an anti-jamming modulation scheme that uses a spreading…

Information Theory · Computer Science 2025-10-06 Jaewon Yun , Joohyuk Park , Yo-Seb Jeon

The Internet of Things (IoT) is an emerging technology that aims to connect heterogeneous and constrained objects to each other and to the Internet. It has grown significantly in a wide variety of applications such as smart homes, smart…

Networking and Internet Architecture · Computer Science 2024-02-09 Mohamed Ali Zormati , Hicham Lakhlef , Sofiane Ouni

The Internet of Things (IoT) has been increasingly used in our everyday lives as well as in numerous industrial applications. However, due to limitations in computing and power capabilities, IoT devices need to send their respective tasks…

Networking and Internet Architecture · Computer Science 2025-07-01 Ziad Qais Al Abbasi , Khaled M. Rabie , Senior Member , Xingwang Li , Senior Member , Wali Ullah Khan , Asma Abu Samah

Federated learning (FL) enables wireless terminals to collaboratively learn a shared parameter model while keeping all the training data on devices per se. Parameter sharing consists of synchronous and asynchronous ways: the former…

Information Theory · Computer Science 2024-01-17 Haihui Xie , Minghua Xia , Peiran Wu , Shuai Wang , Kaibin Huang

Multi-access edge computing (MEC) is seen as a vital component of forthcoming 6G wireless networks, aiming to support emerging applications that demand high service reliability and low latency. However, ensuring the ultra-reliable and…

Systems and Control · Electrical Eng. & Systems 2024-05-08 Arian Ahmadi , Anders Høst-Madsen , Zixiang Xiong

This article introduces an energy and spectral efficient multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) transmission scheme designed for the future sixth generation (6G) wireless communication…

Signal Processing · Electrical Eng. & Systems 2024-04-10 Sen Wang , Tianxiong Wang , Shulun Zhao , Zhen Feng , Guangyi Liu , Chunfeng Cui , Chih-Lin I , Jiangzhou Wang

Orthogonal frequency division multiplexing (OFDM) with index modulation (OFDM-IM) appears as a promising multi-carrier waveform candidate for beyond 5G due to its attractive advantages such as operational flexibility and ease of…

Information Theory · Computer Science 2020-09-11 Ali Tugberk Dogukan , Ertugrul Basar

Phase noise correction is crucial to exploit full advantage of orthogonal frequency division multiplexing (OFDM) in modern high-data-rate communications. OFDM channel estimation with simultaneous phase noise compensation has therefore drawn…

Information Theory · Computer Science 2017-04-25 Zhongju Wang , Prabhu Babu , Daniel P. Palomar

From a conceptual perspective, 5G technology promises to deliver low latency, high data rate and more reliable connections for the next generations of communication systems. To face these demands, modulation schemes based on Orthogonal…

Signal Processing · Electrical Eng. & Systems 2021-04-01 João Martins , Filipe Conceição , Marco Gomes , Vitor Silva , Rui Dinis

In this paper, we propose a deep-learning-based channel estimation scheme in an orthogonal frequency division multiplexing (OFDM) system. Our proposed method, named Single Slot Recurrence Along Frequency Network (SisRafNet), is based on a…

Signal Processing · Electrical Eng. & Systems 2024-01-12 Abu Shafin Mohammad Mahdee Jameel , Akshay Malhotra , Aly El Gamal , Shahab Hamidi-Rad