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(10375 results)-
Whitepapers
Baseband Radio Over Fiber Aided Millimeter-Wave Distributed Antenna for Optical/Wireless Integration
March 4, 2013 12:00am PST
A Baseband Radio Over Fiber (BROF) architecture is proposed, where up to four Radio Frequency (RF) carriers can be generated, while using the heterodyne photo-detection of only two optical...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
CogWnet: A Resource Management Architecture for Cognitive Wireless Networks
March 3, 2013 12:00am PST
With the increasing adoption of wireless communication technologies, there is a need to improve management of existing radio resources. Cognitive radio is a promising technology to improve the...
Provided by: University of Miami School of Business Administration
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Whitepapers
Rebroadcasting Neighbour Coverage Routing Protocol in MANET Using MAC layer Design
March 1, 2013 12:00am PST
In MANET broadcasting is a virtual role which covers the neighbour to reach destination, its resolves many issues in Mobile Ad hoc Network. Dynamic change of radio frequency leads to un-covered...
Provided by: Prison Health Services
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Whitepapers
An Efficient Dynamic Channel Allocation Algorithm for Wi-MAX Networks
March 1, 2013 12:00am PST
This paper presents an efficient algorithm for channel assignment problem in cellular radio networks. The task is to find channel assignment with minimum frequency bandwidth necessary to satisfy...
Provided by: International Journal of Computer Applications
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Whitepapers
Spectrum Sensing and Security in Cognitive Radio
March 1, 2013 12:00am PST
This paper analysis performance of energy detection technique for cognitive radio which implies spectrum sensing. Main objective is to reduce interference occur in the cognitive radio systems....
Provided by: International Journal of Computer Applications
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Whitepapers
Comparative Analysis of AODV, DSR, GRP, OLSR and TORA by Varying Number of Nodes with FTP and HTTP Applications Over MANETs
March 1, 2013 12:00am PST
Recent years have witnessed an extreme growth in research and development in the field of Wireless Networks. The special focus has been on Ad-hoc Networks especially Mobile Ad-hoc NETwork (MANET)....
Provided by: International Journal of Computer Applications
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Whitepapers
Security Frameworks Design and Implementation for Dynamic Management of Data and Information in Cognitive Radio Networks
March 1, 2013 12:00am PST
Cognitive radio network is a new innovation wireless technology aiming to improve the utilization of the electromagnetic spectrum. Cognitive radio network consists of several cognitive radio...
Provided by: North Western University
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Whitepapers
Spectrum Sensing for OFDM Signals Using Pilot Induced Auto-Correlations
March 1, 2013 12:00am PST
Orthogonal Frequency Division Multiplex (OFDM) has been widely used in various wireless communications systems. Thus the detection of OFDM signals is of significant importance in cognitive radio...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Hard Network Lifetime Wireless Sensor Networks With High Energy First Clustering
March 1, 2013 12:00am PST
Wireless Sensor Network (WSN) requires robust and energy efficient communication protocols to minimize the energy consumption as much as possible. However, the lifetime of sensor network reduces...
Provided by: International Journal of Engineering Science and Technology (IJEST)
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Whitepapers
Simulation of Cognitive Radio System Applying Different Wireless Channel Models
March 1, 2013 12:00am PST
Cognitive radio is an emerging technology, which aims to upgrade the spectrum utilization by allowing the secondary users to operate at the spectrum bands vacated by the primary users. A cognitive...
Provided by: Menoufia University
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Whitepapers
Improved Energy Efficient MAC Protocol for Wireless Sensor Networks
March 1, 2013 12:00am PST
Wireless Sensor Networks are widely used in many fields, such as environmental monitoring and natural exploring. Sensor nodes are deployed in the region, forming the multi-hop wireless network for...
Provided by: International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
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Whitepapers
Conceptual representation and Survey of Dynamic Power Management (DPM) in Wireless Sensor Network
March 1, 2013 12:00am PST
A Wireless Sensor Network (WSN) comprises many sensor nodes each one containing a processing unit, one or more sensor, a radio for data communication and power unit usually equipped with a low...
Provided by: International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
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Whitepapers
Analysis of Data Rate Trade Off of UWB Communication Systems
March 1, 2013 12:00am PST
As UWB system transmit low power stream of short pulses in large spectrum, their energy is spread over a large amount of spectrum .This signal can penetrate in noisy radio environment and provide...
Provided by: International Journal of Advances in Engineering & Technology (IJAET)
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Whitepapers
T-Matched Dipole Tag Antenna for Uhf RFID Applications
March 1, 2013 12:00am PST
RFID (Radio Frequency IDentification) is an extremely important technology of automatic identification. It is being used in a wide range of applications such as Electronic Toll Collect (ETC),...
Provided by: International Journal of Advances in Engineering & Technology (IJAET)
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Whitepapers
A Predator-Prey Model for Dynamics of Cognitive Radios
March 1, 2013 12:00am PST
Cognitive radio technology is well-known to enhance spectrum utilization via opportunistic transmission at link level. However, the time dynamics of spectrum utilization among primary system users...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
A Novel Approach for Improving the Performance of TCP by TCP Reno and SACK Acknowledgement in High Traffic Density Conditions With Cognitive Radios
March 1, 2013 12:00am PST
The key factors that contribute to TCP's performance degradation as TCP losses, MAC link failure detection latency, Route computation time and, Link failure notification latency Transmission...
Provided by: ACCENTS
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Whitepapers
Effective Performance Evaluation of On-Demand Routing Protocol for Cognitive Radio Ad Hoc Network
March 1, 2013 12:00am PST
To solve spectrum decision and route selection problem which have vital role in Cognitive Radio Ad Hoc Network (CRAHN), many researchers developed different methodology how efficiently select the...
Provided by: ACCENTS
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Whitepapers
Multi-Level Security for Automotive - RFID Based Technology With Lab VIEW Implementation
March 1, 2013 12:00am PST
Security has become a prominent parameter for all the electronic gadgets. This proposed paper aims at securing the automotive and also preventing the unauthorized persons from accessing it. The...
Provided by: ACCENTS
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Whitepapers
A Novel Radio Over Fiber System for Long Haul Single-Mode-Fiber Transmission
March 1, 2013 12:00am PST
The authors have proposed and demonstrated a novel architecture of a Radio over Fiber (RoF) system in this paper. In this downlink system, the base band data signals are carried by the optical...
Provided by: International Journal of Soft Computing and Engineering (IJSCE)
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Whitepapers
Adaptive Power Saving Dynamic Radio Resource Allocation in OFDMA Based Cellular Relay Networks
March 1, 2013 12:00am PST
In this paper, the authors are analyzing the performance of adaptive power saving resource allocation with frequency reuse method for Orthogonal Frequency Division Multiple Access (OFDMA) based...
Provided by: International Journal of Application or Innovation in Engineering & Management (IJAIEM)
