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We investigate the beampattern design problem for mono-static multi-user (MU) multi-point-target integrated sensing and communication (ISAC) systems, where a dual-function multiple-input multiple-output (DF-MIMO) base station (BS) performs…

Signal Processing · Electrical Eng. & Systems 2025-09-30 Wilson de Souza Junior , Taufik Abrao , Amine Mezghani , Ekram Hossain

A novel transmission protocol is conceived for a multi-user, multi-relay, multiple-input--multiple-output orthogonal frequency-division multiple-access (MIMO-OFDMA) cellular network based on joint transmit and receive beamforming. More…

Information Theory · Computer Science 2016-09-20 Kent Tsz Kan Cheung , Shaoshi Yang , Lajos Hanzo

This paper presents a Semantic Feature Multiple Access (SFMA) framework for multi-user semantic communication in downlink wireless systems. By extending SwinJSCC to a two-user superimposition paradigm, SFMA enables simultaneous semantic…

Signal Processing · Electrical Eng. & Systems 2026-04-13 Jiaxiang Wang , Zhaohui Yang , Mingzhe Chen , Mohammad Shikh-Bahaei

Recently, interest on the utilization of unmanned aerial vehicles (UAVs) has aroused. Specifically, UAVs can be used in cellular networks as aerial users for delivery, surveillance, rescue search, or as an aerial base station (aBS) for…

Signal Processing · Electrical Eng. & Systems 2020-10-20 Wael Jaafar , Shimaa Naser , Sami Muhaidat , Paschalis C. Sofotasios , Halim Yanikomeroglu

The polarization domain provides an extra degree of freedom (DoF) for improving the performance of multiple-input multiple-output (MIMO) systems. This paper takes advantage of this additional DoF to alleviate practical issues of successive…

We investigate a coded uplink non-orthogonal multiple access (NOMA) configuration in which groups of co-channel users are modulated in accordance with orthogonal time frequency space (OTFS). We take advantage of OTFS characteristics to…

Information Theory · Computer Science 2021-02-10 Yao Ge , Qinwen Deng , P. C. Ching , Zhi Ding

High-mobility scenarios are becoming increasingly critical in next-generation communication systems. While multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) stands as a prominent technology, its…

Signal Processing · Electrical Eng. & Systems 2025-12-22 Hengyu Zhang , Xuehan Wang , Xu Shi , Jintao Wang , Zhaohui Yang

Full Duplex (FD) technology is considered as one of the next big leap in the evolution of modern WLANs. Allowing a node to simultaneously transmit a data frame while in receive mode, can theoretically double the system throughput. However,…

Networking and Internet Architecture · Computer Science 2026-05-25 Anastasios C. Politis , Constantinos S. Hilas , Hristos T. Anastassiu

In unmanned aerial vehicle (UAV) networks, high-capacity data transmission is of utmost importance for applications such as intelligent transportation, smart cities, and forest monitoring, which rely on the mobility of UAVs to collect and…

Networking and Internet Architecture · Computer Science 2023-08-15 Yingying Zou , Zhiqing Wei , Yanpeng Cui , Xinyi Liu , Zhiyong Feng

Two-way relaying can significantly improve performance of next generation wireless networks. However, due to its dependence on multi-node cooperation and transmission coordination, applying this technique to a wireless network in an…

Information Theory · Computer Science 2012-07-27 Wenguang Mao , Xudong Wang

Communication protocols and techniques are often evaluated using simulation techniques. However, the use of formal modeling and analysis techniques for verification and evaluation in particular for Wireless Sensor Networks (WSN) becomes a…

Networking and Internet Architecture · Computer Science 2010-07-15 Hafedh Zayani , Kamel Barkaoui , Rahma Ben Ayed

Sparse Code Multiple Access (SCMA) is a disruptive code-domain non-orthogonal multiple access (NOMA) scheme to enable \color{black}future massive machine-type communication networks. As an evolved variant of code division multiple access…

Signal Processing · Electrical Eng. & Systems 2022-05-17 Saumya Chaturvedi , Zilong Liu , Vivek Ashok Bohara , Anand Srivastava , Pei Xiao

Wireless Mesh Networks (WMNs) technology has been used in recent years for broadband access in both cities and rural areas. A key development is to equip routers with multiple directional antennas so that these routers can transmit to, or…

Networking and Internet Architecture · Computer Science 2016-07-08 Yuanhuizi Xu , Kwan-Wu Chin , Sieteng Soh

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

Intelligent terminals often produce a large number of data packets of small lengths. For these packets, it is inefficient to follow the conventional medium access control (MAC) protocols because they lead to poor utilization of service…

Information Theory · Computer Science 2016-11-18 Ronggui Xie , Huarui Yin , Zhengdao Wang , Xiaohui Chen

Rate-splitting multiple access (RSMA) has been recognized as a promising physical layer strategy for 6G. Motivated by ever increasing popularity of cache-enabled content delivery in wireless communications, this paper proposes an innovative…

Information Theory · Computer Science 2022-04-26 Robert-Jeron Reifert , Alaa Alameer Ahmad , Yijie Mao , Aydin Sezgin , Bruno Clerckx

A fundamental two-user PASS-based communication system is considered under three MA schemes, namely non-orthogonal multiple access (NOMA), frequency division multiple access (FDMA), and time division multiple access (TDMA). For each MA…

Signal Processing · Electrical Eng. & Systems 2025-06-17 Qiao Ren , Xidong Mu , Siyu Lin , Yuanwei Liu

For Wireless Personal Area Network (WPAN) systems, resource allocation between several users within a piconet and the coexistence of several piconets are very important points to take into consideration for the optimization of high data…

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

Multiple access technology is a key technology in various generations of wireless communication systems. As a potential multiple access technology for the next generation wireless communication systems, model division multiple access (MDMA)…

Information Theory · Computer Science 2023-11-28 Lei Teng , Wannian An , Chen Dong , Xiaoqi Qin , Xiaodong Xu

This paper investigates a new class of carrier-sense multiple access (CSMA) protocols that employ deep reinforcement learning (DRL) techniques, referred to as carrier-sense deep-reinforcement learning multiple access (CS-DLMA). The goal of…

Networking and Internet Architecture · Computer Science 2019-10-14 Yiding Yu , Soung Chang Liew , Taotao Wang