Results 51 to 60 of about 215,250 (265)
, 2014 This paper studies the opportunistic spectrum access (OSA) of the secondary users in a large-scale overlay cognitive radio (CR) network. Two threshold-based OSA schemes, namely the primary receiver assisted (PRA) protocol and the primary transmitter ...
Liu, Danpu +3 more
core +1 more source
Grounding Large Language Models for Robot Task Planning Using Closed‐Loop State Feedback
Advanced Robotics Research, EarlyView.BrainBody‐Large Language Model (LLM) introduces a hierarchical, feedback‐driven planning framework where two LLMs coordinate high‐level reasoning and low‐level control for robotic tasks. By grounding decisions in real‐time state feedback, it reduces hallucinations and improves task reliability.
Vineet Bhat +4 more
wiley +1 more source
Novel cooperative power control game algorithm for cognitive radio systems
Tongxin xuebao, 2007 In order to fair optimally allocate the limited cognitive radio resource,a cognitive radio system was developed based on STBC OFDM-CDMA network systems and a novel Nash bargaining solution named NBS of cooperative power control was adopted in this system,
CHENG Shi-lun1, YANG Zhen1, ZHANG Hui2
doaj +2 more sources
Simulation Tools for Cognitive Radio Network: A Survey
IEEE AccessDue to recent expansion of wireless communications, it has become impossible to cope with the allotment of the precious spectrum while resources for wireless communication are bounded and finite. Hence, the cognitive radio concept is introduced to ensure
A. K. M. Muzahidul Islam +5 more
doaj +1 more source
Optimal sensing performance for cooperative and non-cooperative cognitive radio networks
International Journal of Distributed Sensor Networks, 2017 Spectrum sensing has gained new aspects with the advent of cognitive radio and opportunistic spectrum access techniques. Spectrum sensing plays a vital role in cognitive radio networks, and its reliability determines the success of transmission.
Waqas Khalid, Heejung Yu
doaj +1 more source
Survey on spectrum sharing/allocation for cognitive radio networks Internet of Things
Egyptian Informatics Journal, 2020 Many IoT applications have been developed recently, this leads to increasing the network load. To avoid the lack of spectrum, IoT can use cognitive radio network concept.
Dina Tarek +3 more
doaj +1 more source
Multi-Radio Based Rendezvous Technique for Heterogeneous Cognitive Radio Sensor Network
Sensors, 2021 In a distributed cognitive radio (CR) sensor network, transmission and reception on vacant channels require cognitive radio nodes to achieve rendezvous.
Md. Tahidul Islam +2 more
doaj +1 more source
Security in cognitive radio networks [PDF]
2014 48th Annual Conference on Information Sciences and Systems (CISS), 2014 Submitted to CISS ...
openaire +2 more sources
Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots
Advanced Robotics Research, EarlyView.Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley +1 more source
Enrutamiento basado en el algoritmo de Dijkstra para una red de radio cognitiva [PDF]
Tecnura, 2011 This paper presents the results of the evaluation of a routing protocol for cognitive radio network, based on Dijkstra’s algorithm, in which nodes seek the most optimal way, depending on the weights of each path or link.
Luis F. Pedraza +2 more
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