Results 31 to 40 of about 542,859 (281)
Convex Sensing-Reporting Optimization for Cooperative Spectrum Sensing [PDF]
IEEE Transactions on Wireless Communications, 2011 We consider the cooperative spectrum sensing problem in cognitive radio with energy detection. Secondary users with non-identical, independent sensing channels make 1-bit sensing decisions and report their decisions to the secondary base station over orthogonal fading channels. The base station acts as a fusion center by combining the decisions with OR-
Adam Noel, Robert Schober
openaire +1 more source
SensorsRemote passive sonar detection with low-frequency band spectral lines has attracted much attention, while complex low-frequency non-Gaussian impulsive noisy environments would strongly affect the detection performance.
Haitao Dong +3 more
doaj +1 more source
A Low-Overhead Energy Detection Based Cooperative Sensing Protocol for Cognitive Radio Systems
, 2009 Cognitive radio and dynamic spectrum access represent a new paradigm shift in more effective use of limited radio spectrum. One core component behind dynamic spectrum access is the sensing of primary user activity in the shared spectrum.
Lau, Vincent K. N. +2 more
core +3 more sources
Cooperative Spectrum Sensing With Data Mining of Multiple Users’ Historical Sensing Data
IEEE Access, 2016 Under the case of exponentially growth of wireless services and the scarcity of spectrum resources, cognitive radio (CR) has been proposed to access licensed channels opportunistically, and thus improve spectrum utilization.
Xin-Lin Huang +4 more
doaj +1 more source
Clinical Insights Into Hypercalcemia of Malignancy in Childhood
Pediatric Blood &Cancer, EarlyView.ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley +1 more source
The Impact of Sensing Range on Spatial-Temporal Opportunity [PDF]
, 2013 In this paper, we study the impact of secondary user (SU) sensing range on spectrum access opportunity in cognitive radio networks. We first derive a closed-form ex- pression of spectrum access opportunity by taking into ac- count the random variations ...
Li, X., Yun, Z., Zhang, X.
core +1 more source
Throughput and Collision Analysis of Multi-Channel Multi-Stage Spectrum Sensing Algorithms
, 2011 Multi-stage sensing is a novel concept that refers to a general class of spectrum sensing algorithms that divide the sensing process into a number of sequential stages.
Gabran, Wesam +2 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Objective To evaluate selumetinib exposure using therapeutic drug monitoring (TDM) in pediatric patients with neurofibromatosis type 1 (NF1) and plexiform neurofibromas (PN), assess interpatient pharmacokinetic variability, and explore the relationship between drug exposure, clinical response, and adverse effects.
Janka Kovács +8 more
wiley +1 more source
Spectrum sensing by cognitive radios at very low SNR
, 2009 Spectrum sensing is one of the enabling functionalities for cognitive radio (CR) systems to operate in the spectrum white space. To protect the primary incumbent users from interference, the CR is required to detect incumbent signals at very low signal ...
Quan, Zhi +3 more
core +2 more sources
Design and Optimal Configuration of Full-Duplex MAC Protocol for Cognitive Radio Networks Considering Self-Interference [PDF]
, 2015 In this paper, we propose an adaptive Medium Access Control (MAC) protocol for full-duplex (FD) cognitive radio networks in which FD secondary users (SUs) perform channel contention followed by concurrent spectrum sensing and transmission, and ...
Le, Long Bao, Tan, Le Thanh
core +2 more sources