Secrecy capacity against adaptive eavesdroppers in a random wireless network using friendly jammers and protected zone
- Authors: Giti, Jishan , Sakzad, Amin , Srinivasan, Bala , Kamruzzaman, Joarder , Gaire, Raj
- Date: 2020
- Type: Text , Journal article
- Relation: Journal of Network and Computer Applications Vol. 165, no. (2020), p.
- Full Text: false
- Reviewed:
- Description: In this paper, we consider deceptive friendly jammers in a half-duplex random wireless network against a group of adaptive eavesdroppers. The destinations, eavesdroppers and friendly jammers are distributed according to homogeneous Poisson point process (HPPP). To the best of our knowledge, we are the first to study such a system model. As we may combine hostile jamming and passive eavesdropping, the secrecy of legitimate communication might be compromised. To combat this and improve secrecy of transmission, a group of friendly jammers thus transmit a source-like signal to deceive the eavesdroppers and try to force them to be passive listeners as much as possible. We derive the secrecy capacity for this scenario. The secrecy performance is evaluated for different parameters and with a secrecy protected zone surrounding the source. Performance evaluation through illustrative numerical results demonstrates that the friendly jammers can enhance the secrecy of a random wireless network. The advantages of friendly jammers are particularly prominent if the secrecy protected zone is very small and/or the node intensity of the destinations is low. The results show that the friendly jammers can restore the secrecy in a hostile environment if sufficient friendly jammers (e.g., 0.01 km−2 for the provided system model) are hired. © 2020
- Description: Funding details: Australian Research Council, ARC Funding text 1: Joarder Kamruzzaman received the BSc and MSc degrees in Electrical and Electronic Engineering from Bangladesh University of Engineering and Technology, Dhaka, and the PhD degree in Information Systems Engineering from Muroran Institute of Technology, Hokkaido, Japan. He is currently a Professor in the School of Science, Engineering and Information Technology, Federation University Australia. Previously, he served as the Director of the Centre for Multimedia Computing, Communications and Artificial Intelligence Research hosted first by Monash University and later by Federation University. His research interests include distributed computing, Internet of Things, machine learning and cyber security. He has published 260+ peer-reviewed publications which include over 80 journal papers, 170 conferences, 11 book chapters and two edited reference books. He is the recipient of Best Paper award in four international conferences: ICICS′15, Singapore; APCC′14, Thailand; IEEE WCNC′10, Sydney, Australia and in the IEEE-ICNNSP′03, Nanjing, China. He has received nearly A$2.3m competitive research funding, including prestigious ARC (Australian Research Council) grant and large CRC (Collaborative Research Centre) grant. He was the founding Program co-Chair of the first International Symposium on Dependability in Sensor, Cloud, and Big Data Systems and Applications (DependSys), China in 2015. He has served 32 conferences in leadership capacities including Program co-Chair, Publicity Chair, Track Chair and Session Chairs, and since 2012 as an Editor of the Elsevier Journal of Network and Computer Applications, and had served as the lead Guest of Elsevier Journal Future Generation Computer Systems.
Impact of friendly jammers on secrecy multicast capacity in presence of adaptive eavesdroppers
- Authors: Giti, Jishan , Srinivasan, Bala , Kamruzzaman, Joarder
- Date: 2017
- Type: Text , Conference proceedings
- Relation: 2017 IEEE Globecom Workshops, 36th IEEE Global Communications Conference; Singapore, Singapore; 4th-8th December 2017
- Full Text: false
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- Description: We consider the problem of security in wireless multicasting for a multiple-input multiple-output (MIMO) relay-aided system. The network suffers from a group of adaptive eavesdroppers who can act as both simple eavesdroppers and hostile jammers. This paper formulates the impact of friendly jammers to improve secured communication. We derived the expressions for secrecy multicast capacities considering the absence and presence of friendly jammers. The best relay for transmission is chosen from a group of relays that aids to achieve the maximum secrecy capacity while the best jammer is selected based on competitive interference price. Numerical results show that the achievable secrecy multicast capacity increases significantly in the presence of jammer to nullify the effect of adversaries. Results under different scenarios of varying jamming and relay powers demonstrate the efficacy of friendly jammers in providing physical layer security.
- Description: We consider the problem of security in wireless multicasting for a