Open AccessStackelberg game for price and power control in secure cooperative relay network
Author(s) -
Chopra Khyati,
Bose Ranjan,
Joshi Anupam
Publication year - 2019
Publication title -
iet cyber‐physical systems: theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.308
H-Index - 7
ISSN - 2398-3396
DOI - 10.1049/iet-cps.2017.0096
Subject(s) - stackelberg competition , relay , control (management) , power (physics) , power control , game theory , computer network , computer science , microeconomics , economics , artificial intelligence , physics , quantum mechanics
In this study, the authors propose a scheme based on Stackelberg game for price and power control in threshold‐based relay network, where the source transmits message to destination with the cooperation of a relay, in the presence of an eavesdropper. The relay gets revenue for transmitting the source information and the source profits from the cooperation secrecy rate. The source needs to pay for the amount of power allocated by the relay for transmission of source data to destination. Threshold‐based relaying is considered, where the relay can correctly decode the message, only if the received signal satisfies the predetermined threshold. Maximal ratio combining scheme is employed at destination and eavesdropper to maximise the probability of secure transmission and successful eavesdropping, respectively. Unlike other works to date, the authors have maximised the utility of relay and source, with allocated maximum power constraints at the relay node, using Stackelberg security game scheme. The closed‐form optimal solution for price and power control is obtained, for this leader–follower security equilibrium game model, with the help of convex optimisation.