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AF Relaying

AF relaying with energy harvesting source and relay

AF relaying with energy harvesting source and relay

... an AF energy harvesting ...an AF energy harvesting system was ...harvesting relaying protocol was assumed, where in the broadcasting phase, the source transmits signal to the relay for energy ...the ...

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Cooperative Spectrum-Sharing with Two-Way AF Relaying in the Presence of Direct Communications

Cooperative Spectrum-Sharing with Two-Way AF Relaying in the Presence of Direct Communications

... two-way AF relaying for underlay spectrum-sharing with the existence of the direct link between two ...two-way relaying schemes depending on the number of required time-slots to complete the ...

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Simultaneous wireless information and power transfer for AF relaying nanonetworks in the terahertz band

Simultaneous wireless information and power transfer for AF relaying nanonetworks in the terahertz band

... an AF relaying simultaneous wireless Information and power transfer scheme for such ...an AF relay harvests EM energy from the received THz signal transmitted by a source node and then consumes the ...

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Outage Probability Analysis of AF Relaying Systems with Heterogeneous Ad Hoc Networks

Outage Probability Analysis of AF Relaying Systems with Heterogeneous Ad Hoc Networks

... In this paper, we analyze the outage probability of AF relaying systems with Heterogeneous Ad Hoc Networks with respect to power allocation. The communicaton system can be decomposed into a a two-tier ...

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Impact of Antenna Correlation on a New Dual Hop MIMO AF Relaying Model

Impact of Antenna Correlation on a New Dual Hop MIMO AF Relaying Model

... Our Contribution. Although MIMO techniques achieve diversity/SNR gains, these gains decrease when there is spatial correlation among the signals received by antenna elements. Therefore, the performance losses due to ...

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Random access transport capacity of multihop AF relaying: a throughput reliability tradeoff

Random access transport capacity of multihop AF relaying: a throughput reliability tradeoff

... with AF strategy in a Poisson field of interferers without neglecting the noise at all of the ...hop AF relaying can be degraded due to the accumu- lated interference caused by the increasing number ...

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Energy harvesting AF relaying in the presence of interference and Nakagami m fading

Energy harvesting AF relaying in the presence of interference and Nakagami m fading

... harvesting AF relaying is analyzed by deriving the outage probability and the throughput in Nakagami-m fading channels, when both the relay and the destination suffer from ...gain relaying and ...

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Particle Swarm Optimization Based Power Allocation in Multi-Hop Cooperative AF Relaying Networks

Particle Swarm Optimization Based Power Allocation in Multi-Hop Cooperative AF Relaying Networks

... ABSTRACT: In spectrum sharing cognitive radio systems ,the coverage area of the secondary users can be extended by using cooperative relaying schemes. In this paper, we consider multi-hop AF cooperative ...

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Comparison of Channel Estimation Protocols for Coherent AF Relaying Networks in the Presence of Additive Noise and LO Phase Noise

Comparison of Channel Estimation Protocols for Coherent AF Relaying Networks in the Presence of Additive Noise and LO Phase Noise

... In this work, we investigated different channel estimation protocols for two-hop AF relaying networks (single-user and multiuser) in the presence of additive estimation noise and relay phase noise. They ...

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Enhancing the efficiency of constrained dual hop Variable gain AF relaying under Nakagami  m fading

Enhancing the efficiency of constrained dual hop Variable gain AF relaying under Nakagami m fading

... cooperative relaying in which source and destination terminals communicate with each other with the help of other terminals ...cooperative relaying reduces energy consumption [7], ...cooperative ...

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Performance analysis of interference limited dual hop multiple antenna AF relaying systems with feedback delay

Performance analysis of interference limited dual hop multiple antenna AF relaying systems with feedback delay

... hop relaying systems, the key limitation of these works is that they all consider a single antenna relaying sys- ...antenna relaying systems becomes increasingly evident ...(MIMO) relaying ...

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Novel energy harvesting AF relaying schemes with channel estimation errors

Novel energy harvesting AF relaying schemes with channel estimation errors

... wireless relaying is channel estimation, which is necessary for demodulation at the des- ...variable-gain AF relaying, both relay and des- tination require channel ...in AF relaying ...

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Performance analysis of end to end SNR estimators for AF relaying

Performance analysis of end to end SNR estimators for AF relaying

... in AF relaying systems by applying the estimators developed in [8–11] to each hop and examining the accuracy of the end-to-end SNR estimate in AF relay- ...for AF relaying ...

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OSTBC transmission in MIMO AF relaying with M FSK modulation

OSTBC transmission in MIMO AF relaying with M FSK modulation

... This paper investigates orthogonal space-time block code (OSTBC) transmission for multiple-input multiple-output (MIMO) amplify-and-forward (AF) relaying networks composed of one source, K relays, and one ...

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Pilot based channel estimation for AF relaying using energy harvesting

Pilot based channel estimation for AF relaying using energy harvesting

... wireless relaying, as the destination needs the channel coefficients for demodu- lation, and the relay sometimes needs them for ...for relaying, which mainly focused on the minimum mean squared error (MMSE) ...

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Outage performance of fixed gain and variable gain AF full duplex relaying in non identical Nakagami m fading channels

Outage performance of fixed gain and variable gain AF full duplex relaying in non identical Nakagami m fading channels

... with relaying has also attracted considerable attention in recent years since it provides coverage extension, capacity, outage, and error performance enhancement ...the AF method, the amplifying process may ...

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Performance analysis of fixed gain AF dual hop relaying systems over Nakagami m fading channels in the presence of interference

Performance analysis of fixed gain AF dual hop relaying systems over Nakagami m fading channels in the presence of interference

... variable-gain relaying [3] and fixed-gain AF relaying ...of AF dual-hop systems in various popular fading channel models ...dual-hop AF systems were studied in Rayleigh fading channels, ...

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Linear precoder design for non orthogonal AF MIMO relaying systems based on MMSE criterion

Linear precoder design for non orthogonal AF MIMO relaying systems based on MMSE criterion

... In this work, we have proposed a joint design for a linear precoder scheme in a half-duplex non-orthogonal AF MIMO relaying system based on the MMSE criterion. Since MMSE is a detector scheme with high ...

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Analyse af fødevarekæder

Analyse af fødevarekæder

... procent af hjemmemarkedet for æg således domineret af differentieret ...lære af hinanden, når det gælder innovation og ...nogle af de mest centrale ...

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af oral antikoagulationsterapi

af oral antikoagulationsterapi

... This International Standard specifies requirements for in vitro measuring systems for self-monitoring of vitamin-K antagonist therapy, including performance, quality assurance and use[r] ...

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