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Sparse Code Multiple Access (SCMA) and Blind Interference Alignment (BIA) are key enablers for multi-user communication, yet each suffers from distinct limitations: SCMA faces high complexity and limited multiplexing gain, while BIA…

Information Theory · Computer Science 2026-03-05 Jianjian Wu , Chi-Tsun Cheng , Qingfeng Zhou , Jianlin Liang , Jinke Wu

Massive machine-type communications (mMTC) are poised to provide ubiquitous connectivity for billions of Internet-of-Things (IoT) devices. However, the required low-latency massive access necessitates a paradigm shift in the design of…

Information Theory · Computer Science 2021-08-24 Yikun Mei , Zhen Gao , Yongpeng Wu , Wei Chen , Jun Zhang , Derrick Wing Kwan Ng , Marco Di Renzo

Sparse code multiple access (SCMA) has been one of non-orthogonal multiple access (NOMA) schemes aiming to support high spectral efficiency and ubiquitous access requirements for 5G wireless communication networks. Conventional SCMA…

Signal Processing · Electrical Eng. & Systems 2019-06-20 Jinzhi Lin , Shengzhong Feng , Zhile Yang , Yun Zhang , Yong Zhang

Given a location-based social network, how to find the communities that are highly relevant to query users and have top overall scores in multiple attributes according to user preferences? Typically, in the face of such a problem setting,…

Databases · Computer Science 2021-06-29 Fangda Guo , Ye Yuan , Guoren Wang , Xiangguo Zhao , Hao Sun

Due to the growing complexity of vertical applications, current integrated sensing and communications (ISAC) in wireless networks remains insufficient for supporting all required beyond communication services. To this end, future networks…

Information Theory · Computer Science 2026-01-14 Jie Chen , Xianbin Wang , Dusit Niyato

An authorisation has been recognised as an important security measure for preventing unauthorised access to critical resources, such as devices and data, within the Internet of Things (IoT) networks. Existing authorisation methods for the…

Cryptography and Security · Computer Science 2022-08-16 Khizar Hameed , Ali Raza , Saurabh Garg , Muhammad Bilal Amin

Graph-based Semi-supervised learning (SSL) algorithms have been successfully used in a large number of applications. These methods classify initially unlabeled nodes by propagating label information over the structure of graph starting from…

Machine Learning · Computer Science 2014-03-03 Partha Pratim Talukdar , William Cohen

In this paper, we investigate a new waveform for UWB systems obtained by the combination of Orthogonal Frequency Division Multiplex (OFDM) and Code Division Multiple Access (CDMA). The proposed system, called Spread Spectrum - Multi-Carrier…

Computational Physics · Physics 2007-05-23 Emeric Guéguen , Matthieu Crussière , Jean-François Hélard

Shared feature spaces for actor-critic methods aims to capture generalized latent representations to be used by the policy and value function with the hopes for a more stable and sample-efficient optimization. However, such a paradigm…

Machine Learning · Computer Science 2021-06-25 Dom Huh

The coded caching scheme proposed by Maddah-Ali and Niesen considers the delivery of files in a given content library to users through a deterministic error-free network where a common multicast message is sent to all users at a fixed rate,…

Information Theory · Computer Science 2020-05-29 Mozhgan Bayat , Ratheesh K. Mungara , Giuseppe Caire

This paper considers an uplink massive machine-type communication (mMTC) scenario, where a large number of user devices are connected to a base station (BS). A novel grant-free massive random access (MRA) strategy is proposed, considering…

Information Theory · Computer Science 2021-02-23 Jia-Cheng Jiang , Hui-Ming Wang

Large Language Models (LLMs) consume vast quantities of human-generated content for both training and real-time inference, yet the creators of that content remain largely invisible in the value chain. Existing approaches to data attribution…

Cryptography and Security · Computer Science 2026-03-31 Praneel Panchigar , Torlach Rush , Matthew Canabarro

In general, deep learning models use to make informed decisions immensely. Developed models are mainly based on centralized servers, which face several issues, including transparency, traceability, reliability, security, and privacy. In…

Cryptography and Security · Computer Science 2023-03-28 Asma Jodeiri Akbarfam , Sina Barazandeh , Hoda Maleki , Deepti Gupta

The secure multiplex coding (SMC) is a technique to remove rate loss in the coding for wire-tap channels and broadcast channels with confidential messages caused by the inclusion of random bits into transmitted signals. SMC replaces the…

Information Theory · Computer Science 2016-09-28 Masahito Hayashi , Ryutaroh Matsumoto

Massive amounts of multimedia data (i.e., text, audio, video, graphics and animation) are being generated everyday. Conventionally, multimedia data are managed by the platforms maintained by multimedia service providers, which are generally…

Cryptography and Security · Computer Science 2020-09-08 Yue Liu , Qinghua Lu , Chunsheng Zhu , Qiuyu Yu

In this paper, we study two tightly coupled issues: space-crossing community detection and its influence on data forwarding in Mobile Social Networks (MSNs) by taking the hybrid underlying networks with infrastructure support into…

Social and Information Networks · Computer Science 2013-07-30 Zhong Li , Cheng Wang , Siqian Yang , Changjun Jiang , Ivan Stojmenovic

Distributed machine learning has been widely studied in order to handle exploding amount of data. In this paper, we study an important yet less visited distributed learning problem where features are inherently distributed or vertically…

Machine Learning · Computer Science 2019-07-19 Yaochen Hu , Peng Liu , Linglong Kong , Di Niu

This paper studies massive access in cell-free massive multi-input multi-output (MIMO) based Internet of Things and solves the challenging active user detection (AUD) and channel estimation (CE) problems. For the uplink transmission, we…

Information Theory · Computer Science 2020-07-23 Malong Ke , Zhen Gao , Yongpeng Wu , Xiqi Gao , Kat-Kit Wong

This paper studies a wireless networked control system with multiple base stations (BSs) cooperatively coordinating the wireless control of a number of subsystems each consisting of a plant, a sensor, and an actuator. In this system, each…

Information Theory · Computer Science 2025-01-22 Zhilin Liu , Yiyang Li , Huijun Xing , Ye Zhang , Jie Xu , Shuguang Cui

As multi-robot systems continue to advance and become integral to various applications, managing conflicts and ensuring secure access control are critical challenges that need to be addressed. Access control is essential in multi-robot…

Robotics · Computer Science 2023-09-01 Salma Salimi , Farhad Keramat , Tomi Westerlund , Jorge Peña Queralta
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