Analysis of transmit antenna selection with output-threshold generalised selection combining over Rayleigh fading

2013 ◽  
Vol 7 (15) ◽  
pp. 1587-1595 ◽  
Author(s):  
Beng Soon Tan ◽  
Kah Chan Teh ◽  
Kwok Hung Li
Keyword(s):  
Rayleigh Fading ◽  
Antenna Selection ◽  
Selection Combining ◽  
Transmit Antenna Selection

scholarly journals Secrecy Performance of TAS/SC-Based Multi-Hop Harvest-to-Transmit Cognitive WSNs Under Joint Constraint of Interference and Hardware Imperfection

Sensors ◽  
2019 ◽  
Vol 19 (5) ◽  
pp. 1160 ◽  
Author(s):  
Phu Tin ◽  
Pham Minh Nam ◽  
Tran Trung Duy ◽  
Phuong Tran ◽  
Miroslav Voznak
Keyword(s):  
Antenna Selection ◽  
Selection Combining ◽  
Secrecy Outage Probability ◽  
Transmit Antenna Selection ◽  
Transmit Power ◽  
Primary Network ◽  
Secondary Network ◽  
Asymptotic Expressions ◽  
Radio Frequency Signals ◽  
Secrecy Outage

In this paper, we evaluate the secrecy performance of multi-hop cognitive wireless sensor networks (WSNs). In the secondary network, a source transmits its data to a destination via the multi-hop relaying model using the transmit antenna selection (TAS)/selection combining (SC) technique at each hop, in the presence of an eavesdropper who wants to receive the data illegally. The secondary transmitters, including the source and intermediate relays, have to harvest energy from radio-frequency signals of a power beacon for transmitting the source data. Moreover, their transmit power must be adjusted to satisfy the quality of service (QoS) of the primary network. Under the joint impact of hardware imperfection and interference constraint, expressions for the transmit power for the secondary transmitters are derived. We also derive exact and asymptotic expressions of secrecy outage probability (SOP) and probability of non-zero secrecy capacity (PNSC) for the proposed protocol over Rayleigh fading channel. The derivations are then verified by Monte Carlo simulations.

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