Cognitive Radio Sensor Node Empowered Mobile Phone for Explosive Trace Detection


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Usefulness of sensor network applications in human life is increasing day by day and the concept of wireless connection promises new application areas. Sensor network can be very beneficial in saving human life from terrorist attacks causing explosion in certain areas leading to 

Cognitive Radio Sensor

Sensor networks for cognitive radio : Theory and system design
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Following current trends towards dynamic spectrum allocation and cognitive radio , this paper proposes a new approach and innovative techniques to support the coexistence of licensed and unlicensed wireless users in a same area. The proposed concept, called

Performance improvement in cognitive radio sensor networks
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Most of traditional wireless networks are using unlicensed frequency spectrum. Recently the spectrum became crowded and these networks suffer from unrestricted interference. In particular Wireless Sensor Networks (WSN) are badly damaged because they transfer

Cognitive radio sensor node empowered mobile phone for explosive trace detection
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Usefulness of sensor network applications in human life is increasing day by day and the concept of wireless connection promises new application areas. Sensor network can be very beneficial in saving human life from terrorist attacks causing explosion in certain areas

It-mac: Enhanced mac layer for image transmission over cognitive radio sensor networks
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Today, the massive demands of wireless technologies lead to the deployment of more efficient and practical spectrum utilization approaches. The legacy wireless sensor network standards such as IEEE 802.15. WiFi, and Bluetooth that fundamentally have been

A Routing Algorithm based on Semi-supervised Learning for Cognitive Radio Sensor Networks.
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In Cognitive Radio Sensor Networks (CRSNs), the cognitive radio technology enables sensor nodes to occupy licensed bands in a opportunistic manner and provides advantages in terms of spectrum utilization and system throughput. This paper proposes a routing

Energy-efficient, learning-inspired channel decision and access technique for cognitive radio -based wireless sensor networks
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Cognitive radio -based wireless sensor network is the next-generation sensor network paradigm. Important to this emerging sensor network is the need to reduce energy consumption, paving way for greencommunication among sensor nodes. Therefore, in this

Cognitive radio assisted OLSR routing for vehicular sensor networks
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Abstract Vehicular Sensor Network (VSN) emerged due to recent developments in Wireless Sensor Network (WSN) and functioning as a way for observing metropolitan environments and enabling vehicles to share relevant sensor data to assist safety, convenience and In order to improve the frequency spectrum availability and evade insecurity frequency range, the cognitive radio is introduced in wireless sensor network (WSN), which constructs the cognitive wireless network (CWN). The dynamic spectrum access (DSA) is used in CWN

Differential space-time block coding based cooperative spectrum sensing over fading environments in cognitive radio sensor networks
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Incorporating cognitive radio capability in recource-constrainted multihop wireless sensor networks help realize the deployment of multiple overlaid sensor networks, and eliminate collision and excessive contention delay incurred by dense node deployment. One

A Three Stage Load Sharing Routing Algorithm to Increase Lifetime of Cognitive Radio Sensor Networks
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Abstract A CRSN or Cognitive Radio Sensor Network is a network of wireless cognitive radio sensor nodes, these sensor nodes sense data and transmit over available spectrum bands. The energy of the nodes decreases gradually while transmitting the data, and

Design and implementation of a cognitive radio based emergency sensor network in disaster area
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Emergency communication systems are set to perform efficient rescue operations after disasters. Wireless communications is the only choice for these networks. After a natural disaster like earthquake in a metropolitan area, rescue operations must be quick and

ENC-MAC: Energy-efficient Non-overlapping Channel MAC for Cognitive Radio enabled Sensor Networks.
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The concept of Internet of Things (IoT) has shed new light on WSN technologies. MAC protocol issues improving the network performance are important in WSNs because of the increase in demand for various applications to secure spectrum resources. Cognitive radio

Analysis of Channel Access Delay in CR-MAC Protocol for Ad Hoc Cognitive Radio Wireless Sensor Networks without a Common Control Channel.
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Ad hoc cognitive radio wireless sensor networks allow secondary wireless sensor nodes to recognize spectrum opportunities and transmit data. Most existing protocols proposed for ad hoc cognitive radio wireless sensor networks require a dedicated common control channelThis paper proposes a spectrum sensing algorithm from one-bit measurements in a cognitive radio sensor network. A likelihood ratio test (LRT) for the one-bit spectrum sensing problem is derived. Different from the one-bit spectrum sensing research work in the

Providing Quality of Service in Cognitive Radio Sensor Networks: A Survey
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Cognitive radio (CR) technology is an excellent solution to use dynamic spectrum access (DSA) technique with the aim of resolving the spectrum underutilization problems and spectrum scarcity problems in networks. Nowadays, wireless sensor networks (WSNs) are

Energy Efficient Architecture to Cognitive Radio Wireless Sensor Networks
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Cognitive radio is a key technology for future wireless communications and mobile computing. In this technology, spectrum plays an important role. Effective utilization of frequency spectrum improves the quality of communication. In this paper we attempt to

Secure spectrum sensing in cognitive radio sensor networks: A survey
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The rapid growth in wireless communications has contributed to a huge demand on the deployment of new wireless services in both the licensed and unlicensed frequency spectrum. Cognitive Radio Networks (CRNs) is a recently emerging paradigm that aim to

Heterogeneous cognitive radio sensor networks through RoF-MIMO technologies
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Recently, smart grid networks are researched and developed for the greening of the energy consumption. When introducing these into the university or the community, it is required not only the wide area cooperation and the high-speed monitoring control, but also the

Performance Analysis of a Wireless Sensor Network for Seism Detection in an Overlay Cognitive Radio System
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This paper studies the performance of a wireless sensor network (WSN) with cognitive radio (CR) capabilities to gather information about structural health monitoring (SHM) of buildings in case of seismic activity. The system performance is evaluated in terms of energy

Efficient Spectrum Sensing and Testbed Development for Cognitive Radio Based Wireless Sensor Networks
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Problem of spectrum scarcity has not only affected cellular communication bands but is continuously pushing freely available ISM bands to its limits. Devices which work in ISM band were developed without the consideration of co-existence and interoperability

An Analytical model to calculate blocking probability of secondary user in cognitive radio sensor networks
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The new trend in telecommunication is to use underutilized spectrum by dynamic spectrum access (DMA) using cognitive radio technology. A node (secondary user, SU) in cognitive radio network (CRN) exploits a spectrum channel in the absence of the spectrum owner

Energy minimization approach for cooperative spectrum sensing in cognitive radio wireless sensor networks
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Cooperative spectrum sensing is a promising method for improving spectrum sensing performance in cognitive radio . Although it yields better spectrum sensing performance, it also incurs additional energy consumption that drains more energy from the sensor nodes

Generalized Detector as Spectrum Sensor in Cognitive Radio Networks
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The implementation of the generalized detector (GD) in cognitive radio (CR) systems allows us to improve the spectrum sensing performance in comparison with employment of the conventional detectors. We analyze the spectrum sensing performance for the uncorrelated

Research on Sensor Network Spectrum Detection Technology based on Cognitive Radio Network
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With the bursting development of computer science and the hardware technology, Internet of Things and wireless sensor networks has been popularly studied in the community of engineering. Under the environment of Internet of Things, we carry out theoretical analysis

Energy Efficient Architecture and Protocols for Cognitive Radio based Sensor Networks
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Abstract Wireless Sensor Networks (WSNs) has been a research topic for more than a decade, and the range of potential applications has spanned beyond the military domain into commercial domains such as industrial/building/home automation, lighting control

Effective sensor positioning to localize target transmitters in a Cognitive Radio Network.
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A precise positioning of transmitting nodes enhances the performance of Cognitive Radio (CR), by enabling more efficient dynamic allocation of channels and transmit powers for unlicensed users. Most localization techniques rely on random positioning of sensor nodes

Optimal Spectrum Sensing in Cognitive Radio Networks and Utility Optimization in Wireless Sensor Networks
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Wireless communications has an explosive growth in the past two decades. In a wireless scenario, information is transmitted between wireless devices. Early before the 16th century, people showed their strong interests in wireless communications. Drum communication and

Cognitive Radio Sensor Networks
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This chapter provides a review of design practices in network communication for Cognitive Radio Sensor Networks. The basics of networking and Medium Access Control functionalities with focus on data routing and spectrum usage are discussed. Technical

Integration of Cognitive Radio Sensor Networks and Cloud Computing
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ABSTRACT Cognitive Radio Sensor Networks (CRSNs) are composed of sensor nodes equipped with Cognitive Radio (CR) technology with limited resources (eg, storage, computational speed, bandwidth, security, etc.). In order to overcome resource limitation

Challenges in Cognitive Radio Sensor Networks
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Current spectrum resources are lack due to inflexible spectrum sharing regulations and underutilization of licensed band for primary users (PUs). Cognitive radio (CR) technology is proposed to address this problem. CR technology enables secondary users (SUs) access

187. OPTIMIZING PACKET SIZE FOR COGNITIVE RADIO SENSOR NETWORK
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The increasing demand for wireless communication introduces efficient spectrum utilization challenge. To address this challenge, cognitive radio (CR) has emerged as the key technology, which enables opportunistic access to the spectrum. The main potential

A Survey on Cognitive Radio Sensor Networks
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Current range resources are needed because of spectrum sharing regulations and underutilization of the authorized band for primary users (PUs). Cognitive radio (CR) innovation is proposed to address this issue. CR innovation empowers secondary users

A Hybrid Approach to Enhance Cognitive Wireless Sensor Networks with Energy-Efficient Software-Defined Radio Capabilities.
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The loss of efficiency and dependability in wireless communications, caused by the increasing spectrum scarcity problem, is particularly critical for battery-powered devices such as sensor nodes. Cognitive Wireless Sensor Networks (CWSNs) arise in order to

Energy-Efficient Clustering for Cognitive Radio Sensor Networks
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Cognitive radio has been proposed as a promising approach to viably use the rare spectrum resources. A cognitive radio sensor N/w (CRSN) is a remote sensor organizes that is furnished with cognitive radio ability. Clustering is a famous system that can be connected to

COGNITIVE RADIO SENSOR NETWORKS: A FUTURISTIC METHOD OF DYNAMIC SPECTRUM SENSING
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Dynamic spectrum management has become a need of the hour as the licensed spectrum is getting overcrowded yet under-utilized. In wireless sensor networks the limitation of inefficiently use of the allotted bandwidth due to its burst traffic nature effect the overall

Advances in Cognitive Radio Sensor Networks
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In Cognitive Radio sensor networks, a pair of Cognitive Radio (CR) users wishing to communicate should first agree on a specific channel called control channel. Communication rendezvous is used to establish a control channel between CR users

Clustering Based Cooperative Spectrum Sensing for Cognitive Radio Sensor Networks
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Cognitive radio has emerged as promising new technology in the field of wireless communication for the efficient utilization of the spectrum resources. A cognitive radio sensor network (CRSN) is a wireless sensor network that is equipped with cognitive radio

CLUSTERED HEED BASED DATA TRANSFER STRATEGY FOR COGNITIVE RADIO SENSOR NETWORKS
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The paper develops a data transfer mechanism for cognitive radio sensor networks (CRSN) with a view to ensure an increased throughput in a mobile environment. It formulates the theory on the principles of a HEED based methodology in a clustered framework. The

SCHEDULING AND BANDWIDTH ALLOCATION IN COGNITIVE RADIO SENSOR NETWORKS
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1.1 Background Wireless sensor networks (WSNs) are the most pervasive networks that have rapid increasing applications. Their main work concept is to sample physical values from the application environment and convey them to the management and controlling

An Overview of Medium Access Control Protocols for Cognitive Radio Sensor Networks
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Page 1. An Overview of Medium Access Control Protocols for Cognitive Radio Sensor Networks Prepared By: Jemish V Maisuria E. C. Department, Uka Tarsadia University, Surat, Gujarat, India Dr. Saurabh N Mehta E. C. Department, Vidhyalankar Institute of Technology, Mumbai, India