Relay Selections for Security and Reliability in Mobile Communication Networks over Nakagami-m Fading Channels

This paper studies the relay selection schemes in mobile communication system over Nakagami-m channel. To make efficient use of licensed spectrum, both single relay selection (SRS) scheme and multirelays selection (MRS) scheme over the Nakagami-m channel are proposed. Also, the intercept probability (IP) and outage probability (OP) of the proposed SRS and MRS for the communication links depending on realistic spectrum sensing are derived. Furthermore, this paper assesses the manifestation of conventional direct transmission scheme to compare with the proposed SRS and MRS ones based on the Nakagami-m channel, and the security-reliability trade-off (SRT) performance of the proposed schemes and the conventional schemes is well investigated. Additionally, the SRT of the proposed SRS and MRS schemes is demonstrated better than that of direct transmission scheme over the Nakagami-m channel, which can protect the communication transmissions against eavesdropping attacks. Additionally, simulation results show that our proposed relay selection schemes achieve better SRT performance than that of conventional direct transmission over the Nakagami-m channel.

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Finite-SNR Diversity-Multiplexing Tradeoff for Cooperative Transmissions with Opportunistic Network Coding

Mathematical Problems in Engineering ◽

10.1155/2012/437927 ◽

2012 ◽

Vol 2012 ◽

pp. 1-14

Author(s):

Guoyou Li ◽

Yajian Zhou ◽

Jingxian Zhou ◽

Kangfeng Zheng ◽

Yixian Yang

Keyword(s):

Network Coding ◽

Fading Channels ◽

Degrees Of Freedom ◽

Relay Node ◽

Cooperative Transmission ◽

Direct Transmission ◽

Opportunistic Network ◽

Transmission Scheme ◽

Opportunistic Network Coding ◽

Diversity Multiplexing Tradeoff

We present a multiuser cooperative transmission scheme with opportunistic network coding (CTONC), which can improve system performance. In contrast to direct transmission and conventional cooperative transmission, the CTONC allows the relay node to decide whether or not to help do cooperation and employ network coding based on the limited feedback from the destinations. It will not help a transmission pair unless its direct transmission fails. This enables CTONC to make efficient use of the degrees of freedom of the channels. We derive and analyze the diversity-multiplexing tradeoff for the CTONC over Rayleigh fading channels at finite signal-to-noise ratios (SNRs). Theoretical analysis and numerical results show that the proposed scheme achieves better performance gain in terms of average mutual information, outage probability, and finite-SNR diversity-multiplexing tradeoff.

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Performance analysis of single relay selection in cooperative communication over Nakagami-m fading channels

Journal of Shanghai Jiaotong University (Science) ◽

10.1007/s12204-013-1364-7 ◽

2013 ◽

Vol 18 (1) ◽

pp. 25-28 ◽

Cited By ~ 2

Author(s):

Yun Zhu ◽

Ru-dan Lin ◽

You-yun Xu ◽

Chun-xiao Cai ◽

Yu-chun Tang

Keyword(s):

Performance Analysis ◽

Fading Channels ◽

Cooperative Communication ◽

Relay Selection ◽

Single Relay

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Performance analysis of dual-hop relay systems with single relay selection in composite fading channels

AEU - International Journal of Electronics and Communications ◽

10.1016/j.aeue.2011.04.013 ◽

2012 ◽

Vol 66 (1) ◽

pp. 39-44 ◽

Cited By ~ 19

Author(s):

Nikolaos Bissias ◽

George P. Efthymoglou ◽

Valentine A. Aalo

Keyword(s):

Performance Analysis ◽

Fading Channels ◽

Relay Selection ◽

Relay Systems ◽

Composite Fading ◽

Single Relay

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On the average capacity of rate adaptive single-relay selection decode-and-forward dual-hop relaying in Rayleigh fading channels

2011 IEEE Wireless Communications and Networking Conference ◽

10.1109/wcnc.2011.5779396 ◽

2011 ◽

Cited By ~ 4

Author(s):

Reza Nikjah ◽

Norman C. Beaulieu

Keyword(s):

Fading Channels ◽

Relay Selection ◽

Rayleigh Fading ◽

Rayleigh Fading Channels ◽

Decode And Forward ◽

Rate Adaptive ◽

Single Relay

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SEP formula for single relay selection in a multiple relay environment over rayleigh fading channels

2008 Canadian Conference on Electrical and Computer Engineering ◽

10.1109/ccece.2008.4564880 ◽

2008 ◽

Cited By ~ 2

Author(s):

Subodha Gunawardena ◽

Nandana Rajatheva

Keyword(s):

Fading Channels ◽

Relay Selection ◽

Rayleigh Fading ◽

Rayleigh Fading Channels ◽

Multiple Relay ◽

Single Relay

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Predictive Relay Selection: A Cooperative Diversity Scheme Using Deep Learning

10.36227/techrxiv.12409457.v2 ◽

2021 ◽

Author(s):

Wei Jiang ◽

Hans Dieter Schotten

Keyword(s):

Deep Learning ◽

Fading Channels ◽

Relay Selection ◽

Cooperative Diversity ◽

Spatial Diversity ◽

Fast Time ◽

Transmission Scheme ◽

Opportunistic Relaying ◽

Full Diversity ◽

Slow Fading Channels

In this paper, we propose a novel cooperative multi-relay transmission scheme for mobile terminals to exploit spatial diversity. By improving the timeliness of measured channel state information (CSI) through deep learning (DL)-based channel prediction, the proposed scheme remarkably lowers the probability of wrong relay selection arising from outdated CSI in fast time-varying channels. It inherits the simplicity of opportunistic relaying by selecting a single relay, avoiding the complexity of multi-relay coordination and synchronization. Numerical results reveal that it can achieve full diversity gain in slow-fading channels and substantially outperforms the existing schemes in fast-fading wireless environments. Moreover, the computational complexity brought by the DL predictor is negligible compared to off-the-shelf computing hardware.

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