Results 121 to 130 of about 25,855 (301)
Cognitive Radio for Broadband Access in Rural Africa and other Developing Countries [PDF]
, 2011 This thesis examines how Cognitive Radio (CR) can impact broadband access in rural Africa and other developing countries. We investigate how CR through dynamic spectrum access facilitates the efficient use of underutilized spectrum (white spaces) in ...
MMARY, C. T, Charles Thomas Mmary
core
On the efficiency of distributed spectrum sensing in ad-hoc cognitive radio networks
, 2009 In this work we evaluate the efficiency of cooperative spectrum sensing to support cognitive radio operation, when sensing is assigned to the cognitive users, randomly located in the area of a primary network.
Viktoria Fodor +3 more
core +1 more source
In‐Sensor Computing by Soft Threshold Logic Gates Under Different Humidity Conditions
Advanced Electronic Materials, EarlyView.Soft nanocomposite materials, based on gold cluster‐assembled thin films implanted in polydimethylsiloxane substrate, can perform reliable processing in ambient environmental conditions. Humidity influences the resistive switching and computational capabilities of the nanocomposites, that can be used as multifunctional material combining sensing ...
Giacomo Nadalini +2 more
wiley +1 more source
A new analytical model for multi-hop cognitive radio networks
, 2012 The cognitive radio (CR) is an emerging technique for increasing the utilisation of communication resources by allowing the unlicensed users to employ the under-utilised spectrum. In this paper, a new analytical performance model is developed to evaluate
Wu, Yulei, Al-Dubai, Ahmed, Min, Geyong
core +1 more source
How Video‐Based Information Affects Farmers' Willingness to Pay for Drone Services
Applied Economic Perspectives and Policy, EarlyView.ABSTRACT Professional service for digital technology like agricultural drones lowers transaction costs and scope thresholds for smallholders. Meanwhile, perceptual adoption barriers remain underexplored. We conduct a two‐stage choice experiment with a randomized video‐based information treatment among 384 Chinese crop farmers to measure its effect on ...
Hua Zhang +4 more
wiley +1 more source
, 2012 We propose a distributed spectrum access algorithm for cognitive radio relay net- works with multiple primary users (PU) and multiple secondary users (SU) utilizing multiple antennas at their transmitter.
Ng, S.X. +4 more
core
Cognitive routing for wireless ad hoc networks [PDF]
, 2011 This thesis examines the design of cognitive routing to improve wireless ad hoc network performance in terms of throughput and delay, as well as reducing the impact of relaying on the network, without deteriorating end-to-end capacity.
Han, Bo
core
Airborne Base Stations for Emergency and Temporary Events
, 2013 This paper introduces a rapidly deployable wireless network based on Low Altitude Platforms and portable land units to support disaster-relief activities, and to extend capacity during temporary mass events.
Munari, Andrea +19 more
core +1 more source
Advanced Intelligent Discovery, EarlyView.Automated procedural analysis is recognized as one of the major game changers for robotic surgery. Meaning digital analysis needs to replace the manual assessments that set todays standard. Mechanical robotic‐instrument tracking enables the derivation of quantitative kinematic metrics that support behavior‐based workflow segmentation into distinct ...
Kateryna Pirkovets +4 more
wiley +1 more source
Scientific ReportsThe emergence of 6G cognitive radio IoT networks introduces both opportunities and complexities in spectrum access and security. Blockchain technology has emerged as a viable solution to address these challenges, offering enhanced security, transparency,
Nassmah Y. Al-Matari +2 more
doaj +1 more source