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This paper proposes a graph neural network (GNN)-based space multiple-input multiple-output (MIMO) framework, named GSM, for direct-to-cell communications, aiming to achieve distributed coordinated beamforming for low Earth orbit (LEO)…

Signal Processing · Electrical Eng. & Systems 2024-12-11 Sai Xu , Yanan Du , Gaojie Chen , Rahim Tafazolli

Mobile communications have been undergoing a generational change every ten years or so. However, the time difference between the so-called "G's" is also decreasing. While fifth-generation (5G) systems are becoming a commercial reality,…

Signal Processing · Electrical Eng. & Systems 2021-03-19 Harsh Tataria , Mansoor Shafi , Andreas F. Molisch , Mischa Dohler , Henrik Sjöland , Fredrik Tufvesson

Mobile (cellular) networks enable innovation, but can also stifle it and lead to user frustration when network performance falls below expectations. As mobile networks become the predominant method of Internet access, developer, research,…

Networking and Internet Architecture · Computer Science 2016-11-17 Utkarsh Goel , Mike P. Wittie , Kimberly C. Claffy , Andrew Le

The index coding problem is a fundamental transmission problem which occurs in a wide range of multicast networks. Network coding over a large finite field size has been shown to be a theoretically efficient solution to the index coding…

Information Theory · Computer Science 2012-10-01 Jalaluddin Qureshi , Chuan Heng Foh , Jianfei Cai

The systems based on intelligent sensors are currently expanding, due to theirs functions and theirs performances of intelligence: transmitting and receiving data in real-time, computation and processing algorithms, metrology remote,…

Networking and Internet Architecture · Computer Science 2014-09-25 Saad Chakkor , El Ahmadi Cheikh , Mostafa Baghouri , Abderrahmane Hajraoui

Facilitating the coexistence of radar systems with communication systems has been a major area of research in radar engineering. The current work presents a new way to sense the environment using the channel equalization block of existing…

Other Computer Science · Computer Science 2017-05-09 Abhishek Bhatta , Amit Kumar Mishra

Now-a-days, a lot of research is being carried out in the development of USVs (Unmanned surface vehicles), UAVs (Unmanned Aerial Vehicles) etc. Now in case of USVs generally, we have seen that wireless controlled vehicles use RF circuits…

Systems and Control · Computer Science 2014-03-13 Sourangsu Banerji

This paper conducts a detailed simulation study of stateless anycast routing in a mobile wireless ad hoc network. The model covers all the fundamental aspects of such networks with a routing mechanism using a scheme of orientation-dependent…

Networking and Internet Architecture · Computer Science 2013-07-29 Reza Azizi

A dynamic and flexible generalized spatial modulation (GSM) framework is proposed for massive MIMO systems. Our framework is leveraged on the utilization of machine learning methods for GSM in order to improve the error performance in…

Signal Processing · Electrical Eng. & Systems 2019-03-12 Selen Gecgel , Caner Goztepe , Gunes Karabulut Kurt

Next-generation wireless networks require enhanced flexibility, efficiency, and reliability in physical layer waveform design to address the challenges posed by heterogeneous channel conditions and stringent quality-of-service demands. To…

Signal Processing · Electrical Eng. & Systems 2026-03-09 Xingyao Zhang , Haoran Yin , Yanqun Tang , Yao Ge , Yong Zeng , Miaowen Wen , Zilong Liu , Yong Liang Guan , Hüseyin Arslan , Giuseppe Caire

Coded modulation is a key technique to increase the spectral efficiency of coherent optical communication systems. Two popular strategies for coded modulation are turbo trellis-coded modulation (TTCM) and bit-interleaved coded modulation…

Information Theory · Computer Science 2017-10-12 Eric Sillekens , Alex Alvarado , Chigo Okonkwo , Benn C. Thomsen

The use of mobile phones has exploded over the past years,abundantly through the introduction of smartphones and the rapidly expanding use of mobile data. This has resulted in a spiraling problem of ensuring quality of service for users of…

Networking and Internet Architecture · Computer Science 2016-02-24 Eleni Rozaki

Recently, the mobile industry has experienced an extreme increment in number of its users. The GSM network with the greatest worldwide number of users succumbs to several security vulnerabilities. Although some of its security problems are…

Cryptography and Security · Computer Science 2012-03-20 M. Toorani , A. A. Beheshti

One to Many communications are expected to be among the killer applications for the currently discussed 5G standard. The usage of coding mechanisms is impacting broadcasting standard quality, as coding is involved at several levels of the…

Information Theory · Computer Science 2016-09-13 Amira Alloum , Sian-Jheng Lin , Tareq Y. Al-Naffouri

Although recent works try to improve collective communication in grid systems by separating intra and inter-cluster communication, the optimisation of communications focus only on inter-cluster communications. We believe, instead, that the…

Distributed, Parallel, and Cluster Computing · Computer Science 2007-05-23 Luiz Angelo Barchet-Estefanel , Gregory Mounie

Increasing AI computing demands and slowing transistor scaling have led to the advent of Multi-Chip-Module (MCMs) based accelerators. MCMs enable cost-effective scalability, higher yield, and modular reuse by partitioning large chips into…

Hardware Architecture · Computer Science 2025-05-06 Ritik Raj , Shengjie Lin , William Won , Tushar Krishna

Future wireless communication systems must simultaneously address multiple challenges to ensure accurate data detection, deliver high Quality of Service (QoS), adding enable a high data transmission with low system design. Additionally,…

Information Theory · Computer Science 2024-10-03 Amina Darghouthi , Abdelhakim Khlifi , Belgacem Chibani

Network slicing has emerged as an integral concept in 5G, aiming to partition the physical network infrastructure into isolated slices, customized for specific applications. We theoretically formulate the key performance metrics of an…

Networking and Internet Architecture · Computer Science 2024-04-30 Homa Esfahanizadeh , Vipindev Adat Vasudevan , Benjamin D. Kim , Shruti Siva , Jennifer Kim , Alejandro Cohen , Muriel Médard

Recent technological advances in wireless communications offer new opportunities and challenges for relay network.To enhance system performance, Demodulate-Network Coding (Dm-NC) scheme has been examined at relay node; it works directly to…

Information Theory · Computer Science 2012-06-29 Ahmed Hassan M. Hassan , Bin Dai , Benxiong Huang

Wimax (Worldwide Interoperability for Microwave Access) is a promising technology which can offer high speed voice, video and data service up to the customer end. The aim of this paper is the performance evaluation of an Wimax system under…

Performance · Computer Science 2009-10-06 Md. Ashraful Islam , Riaz Uddin Mondal , Md. Zahid Hasan