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Cognitive radio (CR) has emerged as a promising technology to improve spectrum utilization. Capacity analysis is very useful in investigating the ultimate performance limits for wireless networks. Meanwhile, with increasing potential future…

Networking and Internet Architecture · Computer Science 2015-01-16 Xiaoxiong Zhong , Yang Qin , Li Li

Channel knowledge map (CKM) is a promising technology to enable environment-aware wireless communications and sensing with greatly enhanced performance, by offering location-specific channel prior information for future wireless networks.…

Signal Processing · Electrical Eng. & Systems 2025-04-25 Shen Fu , Yong Zeng , Zijian Wu , Di Wu , Shi Jin , Cheng-Xiang Wang , Xiqi Gao

This paper addresses the problem of channel allocation in Cognitive Radio (CR) networks. CR has been considered as a technology which improves spectrum utilization significantly by carrying out Dynamic Spectrum Management (DSM). One issue…

Signal Processing · Electrical Eng. & Systems 2020-04-17 Ahmad Ghasemi , Foad Ghasemi

Channel knowledge map (CKM) is a promising technique to achieve environment-aware wireless communication and sensing. Constructing the complete CKM based on channel knowledge observations at sparse locations is a fundamental problem for…

Image and Video Processing · Electrical Eng. & Systems 2026-04-27 Z. Chen , S. Fu , Y. Zeng , X. Xu , Z. Wei

Today's wireless networks are characterized by fixed spectrum assignment policy. The limited available spectrum and the inefficiency in the spectrum usage necessitate a new communication paradigm to exploit the existing wireless spectrum…

Networking and Internet Architecture · Computer Science 2011-09-02 Partha Pratim Bhattacharya , Ronak Khandelwal , Rishita Gera , Anjali Agarwal

Cooperative spectrum sensing has been proven to improve sensing performance of cognitive users in presence of spectral diversity. For multi-channel CRN (MC-CRN), designing a cooperative spectrum sensing scheme becomes quite challenging as…

Networking and Internet Architecture · Computer Science 2017-11-08 Prakash Chauhan , Sanjib K. Deka , Monisha Devi , Nityananda Sarma

UAVs are increasingly appearing in swarms or formations to leverage cooperative behavior, forming flying ad hoc networks. These UAV-enabled networks can meet several complex mission requirements and are seen as a potential enabler for many…

Networking and Internet Architecture · Computer Science 2021-08-31 Martin Andreoni Lopez , Michael Baddeley , Willian T. Lunardi , Anshul Pandey , Jean-Pierre Giacalone

The advent of 6G wireless networks promises unprecedented connectivity, supporting ultra-high data rates, low latency, and massive device connectivity. However, these ambitious goals introduce significant challenges, particularly in channel…

Signal Processing · Electrical Eng. & Systems 2025-06-02 Xingchen Liu , Shu Sun , Meixia Tao , Aryan Kaushik , Hangsong Yan

In cognitive radio networks, channel aggregation (CA) and channel fragmentation (CF) techniques have been proposed to enhance the spectrum utilization. While most of the literature studies CA and CF independently, in this paper we combine…

Networking and Internet Architecture · Computer Science 2012-06-14 Lei Li , Sihai Zhang , Kaiwei Wang , Wuyang Zhou

Spectrum management has been identified as a crucial step towards enabling the technology of the cognitive radio network (CRN). Most of the current works dealing with spectrum management in the CRN focus on a single task of the problem,…

Information Theory · Computer Science 2016-11-17 Mingyi Hong , Alfredo Garcia , Jorge Alviar

Satellite Communication (SatCom) networks represent a fundamental pillar in modern global connectivity, facilitating reliable service and extensive coverage across a plethora of applications. The expanding demand for high-bandwidth services…

Networking and Internet Architecture · Computer Science 2025-09-03 Rakshitha De Silva , Shiva Raj Pokhrel , Jonathan Kua , Sithamparanathan Kandeepan

Coherent communications aim to support higher data rates and extended connectivity at lower power consumption compared with traditional point-to-point transmissions. The typical setting of coherent communication schemes is based on a single…

Networking and Internet Architecture · Computer Science 2019-12-24 Yi Shi , Yalin E. Sagduyu

The ability to intelligently utilize resources to meet the need of growing diversity in services and user behavior marks the future of wireless communication systems. Intelligent wireless communications aims at enabling the system to…

Information Theory · Computer Science 2018-12-27 Xiangwei Zhou , Mingxuan Sun , Geoffrey Ye Li , Biing-Hwang Juang

Spectrum efficiency and energy efficiency are two critical issues in designing wireless networks. Through dynamic spectrum access, cognitive radios can improve the spectrum efficiency and capacity of wireless networks. On the other hand,…

Networking and Internet Architecture · Computer Science 2016-11-15 Xiao Lu , Ping Wang , Niyato Dusit , Hossain Ekram

This dissertation is a study on the design and analysis of novel, optimal routing and rate control algorithms in wireless, mobile communication networks. Congestion control and routing algorithms upto now have been designed and optimized…

Networking and Internet Architecture · Computer Science 2012-01-20 Jung Ryu

Efficient channel selection is essential in 802.11 mesh deployments, for minimizing contention and interference among co-channel devices and thereby supporting a plurality of QoS-sensitive applications. A few protocols have been proposed…

Networking and Internet Architecture · Computer Science 2012-11-06 George Athanasiou , Leandros Tassiulas

Traditionally, two different policies to access the radio spectrum have coexisted: licensed regulation, whereby the rights to use specific spectral bands are granted in exclusivity to an individual operator; or unlicensed regulation,…

In this paper we consider a Wireless Mesh Network (WMN) integrating SDN principles. The Wireless Mesh Routers (WMR) are OpenFlow capable switches that can be controlled by SDN controllers, according to the wmSDN (wireless mesh SDN)…

Networking and Internet Architecture · Computer Science 2014-06-11 Stefano Salsano , Giuseppe Siracusano , Andrea Detti , Claudio Pisa , Pier Luigi Ventre , Nicola Blefari-Melazzi

There is a growing demand for wireless services with different requirements in a dense and heterogeneous wireless environment. Handling this complex ecosystem is becoming a challenging issue, and wireless virtualization emerges as an…

Networking and Internet Architecture · Computer Science 2014-12-02 Andson Marreiros Balieiro , Kelvin Lopes Dias

The conventional design of wireless communication systems typically relies on established mathematical models that capture the characteristics of different communication modules. Unfortunately, such design cannot be easily and directly…

Signal Processing · Electrical Eng. & Systems 2021-10-04 Yifan Ma , Yifei Shen , Xianghao Yu , Jun Zhang , S. H. Song , Khaled B. Letaief