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Forecasting atmospheric flows with traditional discretization methods, also called full order methods (e.g., finite element methods or finite volume methods), is computationally expensive. We propose to reduce the computational cost with a…

数值分析 · 数学 2025-04-03 Arash Hajisharifi , Michele Girfoglio , Annalisa Quaini , Gianluigi Rozza

This letter focuses on exploring a new decoding order to resolve the secrecy issue among untrusted nonorthogonal multiple access users. In this context, firstly, we identify the total number of possible decoding orders analytically. Then,…

信息论 · 计算机科学 2021-03-31 Sapna Thapar , Deepak Mishra , Ravikant Saini

In this paper, we propose and analyze an error-constrained data transmission approach for uplink communication using non-orthogonal multiple access (NOMA). The results are presented for the cases with hybrid automatic repeat request (HARQ)…

信息论 · 计算机科学 2020-06-26 Behrooz Makki , Tommy Svensson , Michele Zorzi

Non-orthogonal multiple access (NOMA) has been identified as a promising technology for future wireless systems due to its performance gains in spectral efficiency when compared to conventional orthogonal schemes (OMA). This gain can be…

网络与互联网体系结构 · 计算机科学 2019-08-16 Onel L. A. López , Hirley Alves , Matti Latva-aho

The interest in trust-based routing protocols has grown with the advancements achieved in ad-hoc wireless networks.However, regardless of the many security approaches and trust metrics available, trust-based routing still faces some…

密码学与安全 · 计算机科学 2015-12-15 Youssef Gahi , Mouhcine Guennoun , Zouhair Guennoun , Khalil El-Khatib

We present a novel quantum optimization-based route compression technique that significantly reduces storage requirements compared to conventional methods. Route optimization systems face critical challenges in efficiently storing selected…

量子物理 · 物理学 2025-04-07 Shunsuke Sotobayashi , Yuichiro Minato , Takao Tomono

Under the emerging network coding paradigm, intermediate nodes in the network are allowed not only to store and forward packets but also to process and mix different data flows. We propose a low-complexity cryptographic scheme that exploits…

密码学与安全 · 计算机科学 2016-11-17 Joao P. Vilela , Luisa Lima , Joao Barros

With the increasing scale of communication networks, the likelihood of failures grows as well. Since these networks form a critical backbone of our digital society, it is important that they rely on robust routing algorithms which ensure…

分布式、并行与集群计算 · 计算机科学 2021-12-01 Christoph Lenzen , Moti Medina , Mehrdad Saberi , Stefan Schmid

Current directions in network routing research have not kept pace with the latest developments in network architectures, such as peer-to-peer networks, sensor networks, ad-hoc wireless networks, and overlay networks. A common characteristic…

网络与互联网体系结构 · 计算机科学 2007-05-23 Leland Smith , Muthukumar Thirunavukkarasu , Srinidhi Varadarajan , Naren Ramakrishnan

Remote Keyless Entry (RKE) systems have become a standard feature in modern vehicles, yet their unidirectional fixed-frequency radio communication renders them vulnerable to replay attacks, impersonation attacks, cryptanalysis, and…

密码学与安全 · 计算机科学 2025-04-15 Jingjing Guo , Bo Tang , Jiayuan Xu , Qingyi Li , Yuyuan Qin , Xinghua Li

Wireless networks consisting of low SWaP, FW-UAVs are used in many applications, such as monitoring, search and surveillance of inaccessible areas. A decentralized and autonomous approach ensures robustness to failures; the UAVs explore and…

网络与互联网体系结构 · 计算机科学 2025-01-24 Shivam Garg , Alexander Ihler , Elizabeth Serena Bentley , Sunil Kumar

In this paper, a random access scheme is introduced which relies on the combination of packet erasure correcting codes and successive interference cancellation (SIC). The scheme is named coded slotted ALOHA. A bipartite graph representation…

信息论 · 计算机科学 2016-11-15 Enrico Paolini , Gianluigi Liva , Marco Chiani

Unsourced random access (URA) has emerged as a pragmatic framework for next-generation distributed sensor networks. Within URA, concatenated coding structures are often employed to ensure that the central base station can accurately recover…

Massive data centers are at the heart of the Internet. The rapid growth of Internet traffic and the abundance of rich data-driven applications have raised the need for enormous network bandwidth. Towards meeting this growing traffic demand,…

网络与互联网体系结构 · 计算机科学 2019-01-29 Maotong Xu , Jelena Diakonikolas , Eytan Modiano , Suresh Subramaniam

A multi-level random power transmit strategy that is used in conjunction with a random access protocol (RAP) (e.g. ALOHA, IRSA) is proposed to fundamentally increase the throughput in a distributed communication network. A SIR model is…

信息论 · 计算机科学 2020-10-20 Akshit Kumar , Parikshit Hegde , Rahul Vaze , Amira Alloum , Cédric Adjih

This paper proposes and demonstrates a PHY-layer design of a real-time prototype that supports Ultra-Reliable Communication (URC) in wireless infrastructure networks. The design makes use of Orthogonal Frequency Division Multiple Access…

网络与互联网体系结构 · 计算机科学 2021-09-03 Jiaxin Liang , Soung Chang Liew

Wireless random access protocols are attracting a revived research interest as a simple yet effective solution for machine-type communications. In the quest to improve reliability and spectral efficiency of such schemes, the use of multiple…

信息论 · 计算机科学 2019-03-11 Andrea Munari , Federico Clazzer , Gianluigi Liva , Michael Heindlmaier

Designing a rate limiter that is simultaneously accurate, available, and scalable presents a fundamental challenge in distributed systems, primarily due to the trade-offs between algorithmic precision, availability, consistency, and…

分布式、并行与集群计算 · 计算机科学 2026-02-13 Bo Guan

The combination between non-orthogonal multiple access (NOMA) and hybrid automatic repeat request (HARQ) is capable of realizing ultra-reliability, high throughput and many concurrent connections particularly for emerging communication…

信息论 · 计算机科学 2022-09-26 Zheng Shi , Chenmeng Zhang , Yaru Fu , Hong Wang , Guanghua Yang , Shaodan Ma

The amalgamation of non-orthogonal multiple access (NOMA) and physical layer security is a significant research interest for providing spectrally-efficient secure fifth-generation networks. Observing the secrecy issue among multiplexed NOMA…

信息论 · 计算机科学 2021-03-31 Sapna Thapar , Deepak Mishra , Ravikant Saini