spread-spectrum radio networks
IJCSMC, Vol. 5, Issue. 5, May 2016, pg.808 – 813 The Review Paper on Securing Wireless Network from External Threats
... 3. Radio & spread spectrum technologies :– Wireless local area networks use a high-frequency radio technology similar to digital cellular & a low-frequency radio ...use ...
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EE/CpE 322 February 17, What to Expect in Senior Design. Bruce McNair
... wireless networks • Radio resource management • Admission/access control for multimedia • Spread spectrum communications. • Multiuser detection & multi- access protocols[r] ...
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A SURVEY OF SPECTRUM SENSING TECHNIQUES FOR COGNITIVE RADIO NETWORKS
... Energy detection technique has few limitations like, at low SNR does not perform well, cannot distinguish between signal and interference and does not work for the spread Spectrum techniques. Further, the ...
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Channel Capacity Analysis of Spread Spectrum Watermarking in Radio Frequency Signals
... signal was added into the transmit signal from each transmit- ter in the Advanced Television Systems Committee (ATSC) terrestrial digital television (DTV) system. The injection level of the spread spectrum ...
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Issues and Challenges in Spectrum management in Cognitive Radio Networks
... the spectrum in three dimensions only – frequency, time and ...for spectrum opportunity. For example, the code dimension of the spectrum space has not been explored well in the ...conventional ...
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Economics of Spectrum Allocation in Cognitive Radio Networks
... Cognitive radio networks (CRNs) are emerging as a promising technology for the efficient use of radio ...these networks, there are two levels of networks on each channel, primary and ...
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ANALYSIS OF PROTOCOLS FOR SPECTRUM SENSING IN COGNITIVE RADIO NETWORKS
... The spectrum management includes time, frequency and transmit-power controls and dynamic spectrum management allowing the radio terminals to operate in the best available frequency ...operations, ...
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Towards realisation of spectrum sharing of cognitive radio networks
... 2) Survey 2: In this stage, we carried out an extensive search in surveys in Cognitive Radio context to identify research problems. We found that the existing surveys are concerned with: a) A particular QoS ...
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Maximum Utility Function Approach for Detection of Primary User Emulation Attack in Cognitive Radio Networks
... Cognitive Radio (CR) has been widely adopted as a promising technology to overcome the spectrum scarcity by authorizing CR users to operate opportunistically in the free space of the licensed frequency ...
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Performance analysis of dynamic spectrum leasing strategies in coordinated cognitive radio networks
... a preset minimum number of resources is achieved) to increase the probability of having available resource to be used when needed. In this strategy, a channel is leased in advanced when certain events are detected (i.e., ...
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Direction of Arrival Estimation under Spread Spectrum Reference Signal Assisted Radio
... In the present work, a direction of arrival estimator, under spread spectrum reference of signal-assisted radio operating in a Rayleigh fading channel, is proposed. The analysis, which is applied to ...
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Learning based spectrum sharing and spatial reuse in mm wave ultra dense networks
... Abstract—In this paper, the throughput maximization of millimeter-wave (mm-Wave) ultra-dense networks (UDN) using dynamic spectrum sharing (DSS) is considered. Most of the existing works only allow ...
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A Novel 3D Analytical Scattering Model for Air-to-Ground Fading Channels
... mobile radio cellular networks are expected to play a vital role [1,2] in emerging fifth generation (5G) communication systems for delivering high speed, large volume, power efficiency, low latency and ...
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Collaborative Spectrum Sensing for Cognitive Radio: Diversity Combining Approach
... cyclostationary spectrum sensing for Cognitive Radio networks, applying mul- tiple cyclic frequencies for single user detection can be interpreted (with some assumptions) in terms of op- timal ...
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Cognitive radio and networking research at Virginia Tech
... the radio in response to dynamic conditions requires both intelligent algorithms and capable radio plat- ...for spectrum Bwhite space[ simulta- neously with ongoing communications, or we may wish to ...
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Improved local spectrum sensing for cognitive radio networks
... Wireless networks are regulated today by using a static spectrum allocation ...the spectrum is used sporadically and the utilization of the assigned spectrum ranges from 15 to 85%, as illu- ...
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Spectrum Sensing with Energy Detection in Cognitive Radio Networks
... allotted spectrum to primary licensed users may be a quite common development, and CR technology has been thought-about as a key answer for ...access spectrum bands that are allotted to be ...accessing ...
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Reliable spectrum sharing management for cognitive radio networks
... Cognitive Radio Network (CRN) is a promising network that aims to improve the utilization of the wireless spectrum by enabling unlicensed (secondary) users to reuse the underutilized ...residual ...
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Consensus-based Spectrum Sensing in Cognitive Radio Networks
... SUs attempted to reach a joint decision on the PU presence via interchange of their individual measurements, which were received undistorted at each node. In this paper, in contrast to the absolute majority of previous ...
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Enhancement of Throughput & Spectrum Sensing of Cognitive Radio Networks
... unused radio spectrum from primary licensed networks ...cognitive radio has been encouraged by the measurements of the Federal Communications Commission (FCC), which have revealed that there ...
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