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Predictive relay-selection cooperative diversity in land mobile satellite systems
2015
International Journal of Satellite Communications And Networking
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This is due to the time delay between the relay selection and its transmission of signal (problem of outdated Channel Quality Information). ...
The results of the PRS cooperative diversity scheme (in comparison with direct communication and cooperation with outdated CQI) are discussed in Section V and the conclusions given in Section VI. ...
However, a general problem with receiver-based cooperative diversity using relay selection is the problem of outdated channel quality information (CQI). ...
doi:10.1002/sat.1118
fatcat:4nengtycqfgvhdifp5zzvijmw4
Relay selection based on MAP estimation for cooperative communication with outdated channel state information
2013
Chinese Journal of Aeronautics
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In this paper, we consider an amplify-and-forward (AF) cooperative communication system when the channel state information (CSI) used in relay selection differs from that during data transmission, i.e. ...
, the CSI used in relay selection is outdated. ...
Conclusions In this paper, we propose a relay selection strategy, RS-MAP, where a relay is selected based on predicted SNR, for an AF cooperative communication system with outdated CSI. ...
doi:10.1016/j.cja.2013.05.002
fatcat:xjndzvd6fjbozc2nsy622qdnz4
A Simple Nth Best-Relay Selection Criterion for Opportunistic Two-Way Relay Networks under Outdated Channel State Information
2014
KSII Transactions on Internet and Information Systems
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The outage performance of the proposed relay selection scheme is analyzed under the outdated channel state information (CSI), and a tight closed-form lower bound and asymptotic value of the outage probability ...
The frequency spectrum available for the wireless communication is extremely crowded. In order to improve the spectral efficiency, the two-way relay networks have aroused great attention. ...
On the other hand, most previous researches assume that the channel state information (CSI) is perfect; however, when relay selection is implemented in real systems, there may be a possibility that the ...
doi:10.3837/tiis.2014.10.007
fatcat:vratziuinzbufmb6kk3ic25s5m
Performance Analysis of Secrecy Outage Probability for AF-Based Partial Relay Selection with Outdated Channel Estimates
2017
Mobile Information Systems
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Moreover, partial relay selection scheme is utilized for relay selection based on outdated channel state information where only neighboring channel information (source-relays) is available and passive ...
In this system, the aim is to transmit the confidential messages from a source to a destination via the selected relay in presence of eavesdroppers. ...
Mobile Information Systems 3
Partial Relay Selection with Outdated CSI. ...
doi:10.1155/2017/7461803
fatcat:5c5gfydvtbgfnnhktzvep7pyja
Opportunistic Multiple Relay Selection for Two-Way Relay Networks with Outdated Channel State Information
2014
KSII Transactions on Internet and Information Systems
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Outdated Channel State Information (CSI) was proved to have negative effect on performance in two-way relay networks. ...
The diversity order of widely used opportunistic relay selection (ORS) was degraded to unity in networks with outdated CSI. ...
Relay selection (RS) protocol is a widely used method in Cooperative communications to improve system performance. ...
doi:10.3837/tiis.2014.02.004
fatcat:jbyv2lys3jbd5fo52hg3fu4zs4
Relay selection schemes relying on adaptive modulation and imperfect channel knowledge for cooperative networks
2012
2012 IEEE International Conference on Communications (ICC)
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Cooperative MAC protocols have been shown to increase the attainable network throughput and to reduce the outage probability when perfect Channel State Information (CSI) is available either at the source ...
Novel relay selection algorithms, based on a Markov Decision Process (MDP) framework, are proposed for mitigating the performance degradation introduced by imperfect channel knowledge. ...
In particular, [1] - [4] assume that either the source station or some of the relays benefit from instantaneous and perfect Channel State Information (CSI). ...
doi:10.1109/icc.2012.6364378
dblp:conf/icc/BabichCH12
fatcat:yfbis7fi2nbi5h3jnfqziic5h4
A Robust Relay Selection Strategy for Cooperative Systems with Outdated CSI
2009
VTC Spring 2009 - IEEE 69th Vehicular Technology Conference
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In this paper, we consider a cooperative system based on relay selection in a scenario where the available channel state information (CSI) is subject to delays. ...
In order to exploit the selection diversity gains of the system while providing robustness against CSI inaccuracy, we propose a robust relay selection strategy based on a minimum mean square error (MMSE ...
When this selection strategy is implemented in a real system, however, the channel state of the selected relay at the selection decision instant can substantially differ from the actual channel during ...
doi:10.1109/vetecs.2009.5073336
dblp:conf/vtc/VicarioBMS09
fatcat:ky35wckvszbjbc45zjzdvb2qre
On the performance of energy harvesting AF partial relay selection with TAS and outdated channel state information over identical channels
2020
International Journal of Electrical and Computer Engineering (IJECE)
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In this paper, the performance of an energy harvesting based partial relay selection (PRS) cooperative system with transmit antenna selection (TAS) and outdated channel state information (CSI) is investigated ...
Energy scarcity has been known to be one of the most noticeable challenges in wireless communication system. ...
CONCLUSION The performance of energy harvesting based PRS cooperative system with TAS and outdated channel state is presented. ...
doi:10.11591/ijece.v10i5.pp5296-5305
fatcat:ccb2jxsvmbfzfpqefijfveasqi
Outage Probability versus Fairness Trade-off in Opportunistic Relay Selection with Outdated CSI
2009
EURASIP Journal on Wireless Communications and Networking
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We analyze the existing trade-offs in terms of system performance versus fairness of a cooperative system based on opportunistic relay selection (ORS) and with outdated channel state information (CSI). ...
) is selected for relaying the source's information. ...
In other words, the channel state of the selected relay considered at the selection decision can substantially differ from the actual one and, as a result, system performance is affected. ...
doi:10.1155/2009/412837
fatcat:5u3lymqtdnfcxdrobsovjeu434
Impact of partial relay selection on the capacity of communications systems with outdated CSI and adaptive transmission techniques
2013
2013 IEEE Wireless Communications and Networking Conference (WCNC)
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The impact of outdated channel state information (CSI) on the capacity of amplify-and-forward (AF) partial relay selection systems is studied in this article. ...
The closed-form expressions for the distribution of received signal-to-noise ratio (SNR) in a multi-relay cooperative communications system is first derived, with independent and identically distributed ...
Conclusions The average channel capacity of relay selection in multirelay cooperative communications systems with outdated CSI was studied, with four classical adaptive transmission techniques over Rayleigh ...
doi:10.1109/wcnc.2013.6555166
dblp:conf/wcnc/ZhongZLZL13
fatcat:mokifkixj5bkxb5o3gx3ygafce
Impact of partial relay selection on the capacity of communications systems with outdated CSI and adaptive transmission techniques
2013
EURASIP Journal on Wireless Communications and Networking
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The impact of outdated channel state information (CSI) on the capacity of amplify-and-forward (AF) partial relay selection systems is studied in this article. ...
The closed-form expressions for the distribution of received signal-to-noise ratio (SNR) in a multi-relay cooperative communications system is first derived, with independent and identically distributed ...
Conclusions The average channel capacity of relay selection in multirelay cooperative communications systems with outdated CSI was studied, with four classical adaptive transmission techniques over Rayleigh ...
doi:10.1186/1687-1499-2013-24
fatcat:nshqvbvtbzc33f6vyahumjzxoe
Efficient Relay Selection Scheme based on Fuzzy Logic for Cooperative Communication
2016
International Journal of Advanced Computer Science and Applications
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We proposed two new relay selection schemes based on fuzzy logic for dual hop cooperative communication. ...
In second proposed relay selection scheme, threshold is used with the objective to minimize the power consumption and channel estimation load. ...
The authors in [25] have utilized the outdated channel state information for selection of best relay and have adopted maximum a posteriori for the prediction of actual SNR during the transmission and ...
doi:10.14569/ijacsa.2016.071138
fatcat:n5otvgwxpjhvxkpkscixbbc76m
Secure Communication in Two-Way Relay Networks with Channel Estimation Errors
2016
International Journal of Security and Its Applications
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In this paper, we investigate the secrecy outage probability (SOP) for the cooperative amplify-and-forward (AF) two-way relay networks (TWRN) with channel estimation (CE) errors under Rayleigh fading channels ...
In the proposed system, two sources simultaneously broadcast their respective information to all the relays firstly. ...
In [16] , authors investigate jammer selection in a two-way decode-and-forward relay network with imperfect channel state information, under the assumption that the relay can decode received signals perfectly ...
doi:10.14257/ijsia.2016.10.8.36
fatcat:5ngtzc55nzfyvn3ntur7mdn34i
A simple amplify-and-forward opportunistic relaying based on outdated channel state information
2014
Science China Information Sciences
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A simple amplify-and-forward opportunistic relaying based on outdated channel state information. ...
However, in mobile scenarios, the channel state information (CSI) estimated in relay selection may be different from the actual CSI employed in data transmission due to relatively fast varying channels ...
They often select the best relay with highest outdated channel gains in the symmetrical cooperative networks 1) . Ref. ...
doi:10.1007/s11432-013-4951-1
fatcat:x53kvojgcfhithgu3yg2hhibou
Relay Selection Considering Successive Packets Transmission in Cooperative Communication Networks
2015
Journal of Computing and Information Technology
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Relay selection has been regarded as an effective method to improve the performance of cooperative communication system. ...
In this scheme, according to the length of data packet, data transmission rate and the estimated channel state information (CSI), the best relay is selected to maximize the number of successive packets ...
In cooperative communication system, there may be multiple relays which assist a source to forward its information to its destination. ...
doi:10.2498/cit.1002423
fatcat:3s4fa75f2vdjtd23qo6e2sp5x4
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