Secure AF relaying with efficient partial relay selection scheme

2019 ◽  
Vol 32 (15) ◽  
pp. e4105 ◽  
Author(s):  
Shao-I Chu ◽  
Bing-Hong Liu ◽  
Ngoc-Tu Nguyen
Keyword(s):  
Relay Selection ◽  
Selection Scheme ◽  
Partial Relay Selection ◽  
Af Relaying

scholarly journals Performance Analysis of Secrecy Outage Probability for AF-Based Partial Relay Selection with Outdated Channel Estimates

2017 ◽  
Vol 2017 ◽  
pp. 1-8
Author(s):  
Kyu-Sung Hwang
Keyword(s):  
Outage Probability ◽  
Relay Selection ◽  
Information Source ◽  
Integral Form ◽  
Secrecy Outage Probability ◽  
Amplify And Forward ◽  
Selection Scheme ◽  
Partial Relay Selection ◽  
Channel Information ◽  
Secrecy Outage

We study the secrecy outage probability of the amplify-and-forward (AF) relaying protocol, which consists of one source, one destination, multiple relays, and multiple eavesdroppers. 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. Moreover, partial relay selection scheme is utilized for relay selection based on outdated channel state information where only neighboring channel information (source-relays) is available and passive eavesdroppers are considered where a transmitter does not have any knowledge of eavesdroppers’ channels. Specifically, we offer the exact secrecy outage probability of the proposed system in a one-integral form as well as providing the asymptotic secrecy outage probability in a closed-form. Numerical examples are given to verify our provided analytical results for different system conditions.

scholarly journals Performance analysis of the clustering-based multihop wireless energy harvesting sensor networks over symmetric and asymmetric fading channels

2017 ◽  
Vol 13 (2) ◽  
pp. 155014771769384 ◽  
Author(s):  
Vikash Singh ◽  
Hideki Ochiai
Keyword(s):  
Energy Harvesting ◽  
Fading Channels ◽  
Relay Selection ◽  
Transmission Rate ◽  
Rician Fading ◽  
Power Splitting ◽  
Decode And Forward ◽  
Selection Scheme ◽  
Multihop Relaying ◽  
Partial Relay Selection

In this work, we propose a clustering-based multihop relaying with the partial relay selection scheme for an energy harvesting relaying network and analyze the performance in the framework of the decode-and-forward relaying and adaptive power splitting protocol over symmetric and asymmetric fading channel models. In particular, we analyze the system performance in terms of the outage probability, effective transmission rate, and throughput. Through extensive numerical analysis, we show that the proposed scheme can substantially outperform the conventional multihop relaying without clustering as well as direct transmission, which suggests that the proposed scheme can be used to extend the network coverage without any extra energy from the network. We also demonstrate that the proposed scheme can compensate for the performance loss due to poor radio frequency to DC conversion efficiency as well as path loss by exploiting the gain associated with multihop relaying as well as the diversity gain achieved through the partial relay selection scheme. Moreover, we investigate the relationship between the total number of relay nodes in the network and the number of hops and show that there is an optimal number of hops that can maximize the throughput for a given transmission power of the source. The effect of the asymmetric channels in our clustering-based multihop relaying is also investigated and it is revealed that the existence of Rician fading will help improve the throughput at the destination side, rather than the source side, as opposed to the conventional multihop relaying scenarios without clustering.

Incremental Relaying with Partial Relay Selection

2010 ◽  
Vol E93-B (5) ◽  
pp. 1317-1321 ◽  
Author(s):  
Vo Nguyen Quoc BAO ◽  
Hyung Yun KONG
Keyword(s):  
Relay Selection ◽  
Partial Relay Selection ◽  
Incremental Relaying
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