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This paper proposes Leader in Charge (LiC), a reliable multicast architecture for device-to-device (D2D) radio underlaying cellular networks. The multicast-requesting user equipments (UEs) in close proximity form a D2D cluster to receive…

多媒体 · 计算机科学 2012-03-06 Wei Yang , Wanlu Sun , Lihua Li

This paper considers full-duplex (FD) device-to-device (D2D) communications in a downlink MISO cellular system in the presence of multiple eavesdroppers. The D2D pair communicate sharing the same frequency band allocated to the cellular…

信息论 · 计算机科学 2017-09-08 Muhammad R. A. Khandaker , Christos Masouros , Kai-Kit Wong

We propose a novel framework for optimizing antenna parameter settings in a heterogeneous cellular network. We formulate an optimization problem for both coverage and capacity - in both the downlink (DL) and uplink (UL) - which configures…

信号处理 · 电气工程与系统科学 2022-10-31 Ezgi Tekgul , Thomas Novlan , Salam Akoum , Jeffrey G. Andrews

This paper investigates the physical layer security issue of a device-to-device (D2D) underlaid cellular system with a multi-antenna base station (BS) and a multi-antenna eavesdropper. To investigate the potential of D2D communication in…

信息论 · 计算机科学 2018-09-11 Hao Xu , Cunhua Pan , Wei Xu , Jianfeng Shi , Ming Chen , Wei Heng

Device-to-Device (D2D) discovery is a key enabler of D2D communications for the direct exchange of local area traffic between proximity users (UEs) to improve spectral efficiency. The direct D2D discovery relies on the capabilities of the…

信息论 · 计算机科学 2017-07-13 Jiayi Zhang , Likai Deng , Xu Li , Yuchuan Zhou , Yanan Liang , Ying Liu

This letter investigates a movable antenna (MA)-aided full-duplex (FD) satellite communication system, where the satellite, equipped with both transmit and receive MAs, serves multiple uplink (UL) and downlink (DL) user terminals (UTs) in…

信号处理 · 电气工程与系统科学 2024-12-23 Lifeng Lin , Jingze Ding , Zijian Zhou , Bingli Jiao

With the evolution of the 5G, 6G and beyond, device-to-device (D2D) communication has been developed as an energy-, and spectrum-efficient solution. In cellular network, D2D links need to share the same spectrum resources with the cellular…

信息论 · 计算机科学 2020-07-03 Yali Chen , Bo Ai , Hongliang Zhang , Yong Niu , Lingyang Song , Zhu Han , H. Vincent Poor

Full-duplex (FD) communication is optimistically promoted to double the spectral efficiency if sufficient self-interference cancellation (SIC) is achieved. However, this is not true when deploying FD-communication in a large-scale setup due…

信息论 · 计算机科学 2018-11-07 Konpal Shaukat Ali , Hesham ElSawy , Mohamed-Slim Alouini

Device-to-Device (D2D) communication is a technology component for LTE-A. The existing researches allow D2D as an underlay to the cellular network to increase the spectral efficiency. In this book, D2D communication underlaying cellular…

计算机科学与博弈论 · 计算机科学 2013-11-06 Chen Xu , Lingyang Song , Zhu Han

Low Earth Orbit (LEO) satellites play a crucial role in the development of 6G mobile networks and space-air-ground integrated systems. Recent advancements in space technology have empowered LEO satellites with the capability to run AI…

分布式、并行与集群计算 · 计算机科学 2024-07-09 Minghao Yang , Jingjing Zhang , Shengyun Liu

With the current exponential growth in traffic and service demands, device-to-device (D2D) cooperation is identified as a major mechanism to enable 5G networks to effectively and efficiently augment network resources. The effectiveness of…

网络与互联网体系结构 · 计算机科学 2018-06-26 Sanaa Sharafeddine , Omar Farhat

We consider a constellation of low-earth-orbit (LEO) satellites connected to a handheld device on the ground. Due to the very large orbital speed, an effective handover strategy becomes of paramount importance. In particular, we study the…

信息论 · 计算机科学 2024-03-25 Houcem Ben Salem , Alberto Tarable , Alessandro Nordio , Behrooz Makki

This paper investigates the cooperative full-duplex device-to-device (D2D) communication underlaying cellular network, where the cellular user (CU) acts as a full-duplex relay to assist the D2D communication. To simultaneously support D2D…

信息论 · 计算机科学 2018-05-18 Guoling Liu , Wenjiang Feng , Zhu Han , Weiheng Jiang

This paper studies the benefits of incorporating underlaid full-duplex (FD) device-to-device (D2D) communications into massive multiple-input-multiple-output (MIMO) downlink systems. Due to the nature of cellular downlink and FD D2D…

信号处理 · 电气工程与系统科学 2020-11-11 Hung V. Vu , Tho Le-Ngoc

In this paper, we develop a comprehensive analytical framework for cache enabled cellular networks overlaid with coordinated device-to-device (D2D) communication. We follow an approach similar to LTE Direct, where the base station (BS) is…

网络与互联网体系结构 · 计算机科学 2017-12-21 Asma Afzal , Syed Ali Raza Zaidi , Des McLernon , Mounir Ghogho

The cellular network coexisting with device-to-device (D2D) communications has been studied extensively. Reconfigurable intelligent surface (RIS) and non-orthogonal multiple access (NOMA) are promising technologies for the evolution of 5G,…

信息论 · 计算机科学 2023-04-20 Yukai Liu , Wen Chen , Kunlun Wang

Radio stripes (RSs) is an emerging technology in beyond 5G and 6G wireless networks to support the deployment of cell-free architectures. In this paper, we investigate the potential use of RSs to enable joint positioning and synchronization…

The direct-to-device (D2D) satellite network is an important 6G evolution direction to enable seamless ubiquitous connectivity. However, the network faces critical handover challenges due to high satellite mobility and wide beam footprints.…

网络与互联网体系结构 · 计算机科学 2026-03-03 Ye Li , Yi Zhou , Yingdong Hu , Zhe Ji , Jiaxi Zhou , Longyu Zhou , Yuchen Liu , Tony Q. S. Quek

The delay-Doppler (DD) domain modulation has been regarded as one of the most competitive candidates to support wireless communications for emerging high-mobility applications in the sixth-generation mobile networks. Unfortunately, most of…

信号处理 · 电气工程与系统科学 2026-03-04 Xuehan Wang , Jintao Wang , Hai Lin , Jinhong Yuan , Xu Shi , Hengyu Zhang , Jian Song

Device-to-device (D2D) technology enables direct communication between adjacent devices within cellular networks. Due to its high data rate, low latency, and performance improvement in spectrum and energy efficiency, it has been widely…

网络与互联网体系结构 · 计算机科学 2024-10-07 Yang Yu , Xiaoqing Tang