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The goal of this paper is to establish which practical routing schemes for wireless networks are most suitable for wideband systems in the power-limited regime, which is, for example, a practically relevant mode of operation for the…

信息论 · 计算机科学 2016-11-15 Ozgur Oyman , J. Nicholas Laneman

In this paper, optimal linear transceiver designs for multi-hop amplify-and-forward (AF) Multiple-input Multiple-out (MIMO) relaying systems with Gaussian distributed channel estimation errors are investigated. Some commonly used…

信息论 · 计算机科学 2011-09-26 Chengwen Xing , Zesong Fei , Shaodan Ma , Jingming Kuang , Yik-Chung Wu

Flying Ad Hoc Networks (FANETs) present unique challenges due to high node mobility, dynamic topologies, and strict resource constraints. Existing routing protocols often optimize for a single metric, such as path length or energy, while…

网络与互联网体系结构 · 计算机科学 2025-10-27 Dhrumil Bhatt , Siddharth Penumatsa , Vidushi Kumar

This paper studies the joint optimization problem of two-way relay beamforming, the receiver power splitting (PS) ratio as well as the transmit power at the sources to maximize the achievable sum-rate of a simultaneous wireless information…

信息论 · 计算机科学 2016-10-19 Alexander A. Okandeji , Muhammad R. A. Khandaker , Kai-Kit Wong , Zhongbin Zheng

One of the paramount advantages of multi-level cache-enabled (MLCE) networks is pushing contents proximity to the network edge and proactively caching them at multiple transmitters (i.e., small base-stations (SBSs), unmanned aerial vehicles…

信息论 · 计算机科学 2021-02-09 Mohammed S. Al-Abiad , Md. Zoheb Hassan , Md. Jahangir Hossain

In this paper, we study the trajectory and resource allocation design for downlink energy-efficient secure unmanned aerial vehicle (UAV) communication systems, where an information UAV assisted by a multi-antenna jammer UAV serves multiple…

信息论 · 计算机科学 2020-03-17 Yuanxin Cai , Zhiqiang Wei , Ruide Li , Derrick Wing Kwan Ng , Jinhong Yuan

In this paper, we study the resource allocation algorithm design for energy-efficient simultaneous wireless information and power transfer (SWIPT) systems. The considered system comprises a transmitter, an information receiver, and multiple…

信息论 · 计算机科学 2015-09-22 Shiyang Leng , Derrick Wing Kwan Ng , Nikola Zlatanov , Robert Schober

For multiple Unmanned-Aerial-Vehicles (UAVs) assisted Mobile Edge Computing (MEC) networks, we study the problem of combined computation and communication for user equipments deployed with multi-type tasks. Specifically, we consider that…

信号处理 · 电气工程与系统科学 2023-08-25 Bin Li , Rongrong Yang , Lei Liu , Junyi Wang , Ning Zhang , Mianxiong Dong

In this paper, the optimal deployment of multiple unmanned aerial vehicles (UAVs) acting as flying base stations is investigated. Considering the downlink scenario, the goal is to minimize the total required transmit power of UAVs while…

信息论 · 计算机科学 2016-02-05 Mohammad Mozaffari , Walid Saad , Mehdi Bennis , Merouane Debbah

Unmanned aerial vehicles (UAVs) are promising for providing communication services due to their advantages in cost and mobility, especially in the context of the emerging Metaverse and Internet of Things (IoT). This paper considers a…

机器学习 · 计算机科学 2023-05-31 Peiyuan Si , Liangxin Qian , Jun Zhao , Kwok-Yan Lam

In this paper, we investigate the resource allocation algorithm design for full-duplex simultaneous wireless information and power transfer (FD-SWIPT) systems. The considered system comprises a FD radio base station, multiple single-antenna…

信息论 · 计算机科学 2016-11-17 Shiyang Leng , Derrick Wing Kwan Ng , Nikola Zlatanov , Robert Schober

This paper investigates the optimal resource allocation of a downlink non-orthogonal multiple access (NOMA) system consisting of one base station and multiple users. Unlike existing short-term NOMA designs that focused on the resource…

信息论 · 计算机科学 2017-05-25 Wei Bao , He Chen , Yonghui Li , Branka Vucetic

Data transmission systems are widely used in various aspects of life, industry, research and other fields. Transmission systems have different characteristics for different application scenarios. Many of them require multi-hop transmission…

信号处理 · 电气工程与系统科学 2018-06-07 Xuesong Liu , Jie Wu , Meng Zhou

The Internet can be made more efficient and robust with hop-by-hop multipath routing: Each router on the path can split packets between multiple nexthops in order to 1) avoid failed links and 2) reduce traffic on congested links. Before…

网络与互联网体系结构 · 计算机科学 2019-06-26 Klaus Schneider , Beichuan Zhang , Lotfi Benmohamed

With vast amounts of spectrum available in the millimeter wave (mmWave) band, small cells at mmWave frequencies densely deployed underlying the conventional homogeneous macrocell network have gained considerable interest from academia,…

网络与互联网体系结构 · 计算机科学 2015-09-29 Yong Niu , Chuhan Gao , Yong Li , Li Su , Depeng Jin

In this paper, we investigate resource allocation algorithm design for multicarrier non-orthogonal multiple access (MC-NOMA) systems employing a full-duplex (FD) base station (BS) for serving multiple half-duplex (HD) downlink (DL) and…

信息论 · 计算机科学 2016-07-12 Yan Sun , Derrick Wing Kwan Ng , Zhiguo Ding , Robert Schober

This paper investigates wireless information and power transfer in a full-duplex MIMO relay channel where the self-sustained relay harvests energy from both source transmit signal and self-interference signal to decode and forward source…

信号处理 · 电气工程与系统科学 2019-01-31 Rafia Malik , Mai Vu

Efficient energy management is essential in Wireless Sensor Networks (WSNs) to extend network lifetime and ensure reliable data transmission. This paper presents a novel method using reinforcement learning-based cluster-head selection and a…

网络与互联网体系结构 · 计算机科学 2025-08-21 Parham Soltani , Mehrshad Eskandarpour , Amir Ahmadizad , Hossein Soleimani

This study proposes an approach for establishing an optimal multihop ad-hoc network using multiple unmanned aerial vehicles (UAVs) to provide emergency communication in disaster areas. The approach includes two stages, one uses particle…

机器人学 · 计算机科学 2022-12-27 Ngan Duong Thi Thuy , Duy Nam Bui , Manh Duong Phung , Hung Pham Duy

Multi-hop relaying is an economically efficient architecture for coverage extension and throughput enhancement in future wireless networks. OFDM, on the other hand, is a spectrally efficient physical layer modulation technique for broadband…

信息论 · 计算机科学 2009-01-22 Xiaolu Zhang , Meixia Tao , Wenhua Jiao , Chun Sum Ng