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Blockchain-based distributive auction for relay-assisted secure communications

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journal contribution
posted on 19.08.2019, 08:51 authored by Amjad Khan, Yogachandran RahulamathavanYogachandran Rahulamathavan, Bokamoso Basutli, Gan ZhengGan Zheng, Basil AsSadhan, Sangarapillai LambotharanSangarapillai Lambotharan
Physical layer security (PLS) is considered as a promising technique to prevent information eavesdropping in wireless systems. In this context, cooperative relaying has emerged as a robust solution for achieving PLS due to multipath diversity and relatively lower transmission power. However, relays or the relay operators in the practical environment are unwilling for service provisioning unless they are incentivized for their cost of services. Thus, it is required to jointly consider network economics and relay cooperation to improve system efficiency. In this paper, we consider the problem of joint network economics and PLS using cooperative relaying and jamming. Based on the double auction theory, we model the interaction between transmitters seeking for a particular level of secure transmission of information and relay operators for suitable relay and jammer assignment, in a multiple source-destination networks. In addition, theoretical analyses are presented to justify that the proposed auction mechanism satisfies the desirable economic properties of individual rationality, budget balance, and truthfulness. As the participants in the traditional centralized auction framework may take selfish actions or collude with each other, we propose a decentralized and trustless auction framework based on blockchain technology. In particular, we exploit the smart contract feature of blockchain to construct a completely autonomous framework, where all the participants are financially enforced by smart contract terms. The security properties of the proposed framework are also discussed.


Engineering and Physical Sciences Research Council under Grant EP/R006385/1 and Grant EP/N007840/1

U.K.–India Education Research Initiative (UKIERI) under Grant UGC-UKIERI-2016-17-019

Botswana International University of Science and Technology (BIUST) under Grant R00067

International Scientific Partnership Program (ISPP) at King Saud University under Grant ISSP134



  • Mechanical, Electrical and Manufacturing Engineering
  • Loughborough University London

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IEEE Access




95555 - 95568




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Prof Sangarapillai Lambotharan