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Relay Selection Algorithm for Cognitive Relay Network
Wireless Personal Communications, 2017In the cognitive relay network, due to the different fading characteristics of communication links, not all relay nodes have constructive impacts on the system performance. A relay selection algorithm is proposed to obtain the minimum relay transmission power while satisfying the secondary user SINR requirements and interference temperature constraints.
Yong Jin 0002 +3 more
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Relay Selection for Security Enhancement in Cognitive Relay Networks [PDF]
IEEE Wireless Communications Letters, 2015 This letter proposes several relay selection policies for secure communication in cognitive decode-and-forward relay networks, where a pair of cognitive relays is opportunistically selected for security protection against eavesdropping. The first relay transmits the secrecy information to the destination, and the second relay, as a friendly jammer ...
Tran Trung Duy +2 more
exaly +3 more sources
Relay selection in multiple clustered relay networks
2015 Wireless Telecommunications Symposium (WTS), 2015We consider the downlink of a realistic cellular network composed of multiple clusters, each of which includes multiple relays and a destination terminal. In this scenario, the interference among the clusters is a critical issue, affecting the end-to-end performance of the system significantly.
Woo Suk Kim +6 more
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Alliances with Optimal Relay Selection
2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07, 2007ALLIANCES is a recently proposed cooperative random access protocol for wireless networks. In this paper we modify the original model to include user location information. We also derive pair-wise error probability (PEP) under Rayleigh flat fading channel and a power-law attenuation environment.
Hailong Yang, Athina P. Petropulu
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On relay selection in frequency selective channels
2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR), 2011We consider relay selection in cooperative relay networks with frequency selective fading, and focus on a system where multiple decode-and-forward relays share a single channel orthogonal to the source. We propose a relay selection scheme and end-to-end transciever architecture which employs a simple decision feedback equalizer, and we show ...
Qingxiong Deng, Andrew G. Klein
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Relay selection in amplify-and-forward relay networks with frequency selective fading
2012 Conference Record of the Forty Sixth Asilomar Conference on Signals, Systems and Computers (ASILOMAR), 2012We consider relay selection in cooperative relay networks with frequency selective fading, and focus on a system where multiple amplify-and-forward relays share a single channel orthogonal to the source. We propose a relay selection method that achieves the optimal diversity-multiplexing tradeoff (DMT) as proven by outage analysis. This relay selection
Qingxiong Deng, Andrew G. Klein
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Relay selection for asynchronous AF relay networks with frequency selective channels
2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2016In this paper, relay selection schemes in asynchronous multi-relay network for frequency selective channels have been investigated. In particular, distributed Alamouti space time coding and amplify-and-forward (AF) relaying are exploited, and orthogonal frequency division multiplexing (OFDM) is implemented with adaptive cyclic prefix (CP) to deal with ...
Mahmoud Alageli +2 more
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2011 - MILCOM 2011 Military Communications Conference, 2011
In this paper we present opportunistic relay communication strategies of decode and forward relaying. The channel that we are considering includes pathloss, shadowing, and fast fading effects. We find a simple outage probability formula for opportunistic relaying in the channel, and validate the results by comparing it with the exact outage probability.
Sungjoon Park, Wayne E. Stark
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In this paper we present opportunistic relay communication strategies of decode and forward relaying. The channel that we are considering includes pathloss, shadowing, and fast fading effects. We find a simple outage probability formula for opportunistic relaying in the channel, and validate the results by comparing it with the exact outage probability.
Sungjoon Park, Wayne E. Stark
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Relaying selection based multiple access relay channel
2016 24th Signal Processing and Communication Application Conference (SIU), 2016Relay selection in case of fast cascade Rayleigh fading channels has been examined in multiple access relay channel structure which is one of the high spectral efficiency network coding applications. Error performance analysis of MARC system has been made for noncoherent binary frequency shift keying (BFSK) and it has been shown that the proposed ...
Muhammet Ali Karabulut +2 more
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Relay selection in bidirectional relay communication
2007 IEEE 8th Workshop on Signal Processing Advances in Wireless Communications, 2007We consider the problem of relay selection in a scenario with N relay nodes. A half-duplex relay node enables bidrectional communication between two nodes with a spectral efficient two phase protocol. In the first phase, both nodes transmit a message to a relay node, which decodes the messages and broadcasts a composition in the succeeding phase.
Tobias J. Oechtering, Holger Boche
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