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AuthorEl Shafie, Ahmed
AuthorAl-Dhahir, Naofal
AuthorDing, Zhiguo
AuthorHamila, Ridha
Available date2023-04-04T09:09:08Z
Publication Date2019
Publication NameIEEE Transactions on Wireless Communications
ResourceScopus
URIhttp://dx.doi.org/10.1109/TWC.2019.2919825
URIhttp://hdl.handle.net/10576/41623
AbstractIn this paper, we investigate the tradeoff between security and throughput and between security and queuing delay in wiretap time-division multiple access (TDMA) networks. We derive a simple relationship, characterized by a single key system parameter, between the stable-throughput region, where there are no perfect secrecy constraints on the data transmissions, and the secure stable-throughput region, where there are perfect secrecy constraints. We quantify the impact of the perfect secrecy constraints on the network's average queuing delay and propose a novel cross-layer security scheme for delaylimited applications. We establish an insightful link between computational security (i.e., upper-layer security implemented through cryptographic schemes) and physical-layer (informationtheoretically proved) security. For the two-user case, we derive a closed-form expression for the network's minimum average queuing delay under the proposed security scheme and provide a relationship between the network's minimum queuing delay under perfect secrecy constraints and computational-only secrecy constraints. Moreover, we investigate the impact of cooperative jamming on achieving perfect secrecy, minimum network's queuing delay, and maximum throughput. We verify our theoretical findings through simulations. 2019 IEEE.
SponsorManuscript received September 9, 2018; revised March 11, 2019 and May 24, 2019; accepted May 24, 2019. Date of publication June 5, 2019; date of current version August 12, 2019. This publication was made possible by NPRP under Grant # NPRP 8-627-2-260 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors. The associate editor coordinating the review of this paper and approving it for publication was M. Li. (Corresponding author: Ahmed El Shafie.) A. El Shafie is with Qualcomm Inc., San Diego, CA 92121 USA (e-mail: aelshafi@qti.qualcomm.com).
Languageen
PublisherIEEE
SubjectAverage queuing delay
Data buffers/queues
Secrecy stable-throughput region
Uplink
TitleOn the delay/throughput-security tradeoff in wiretap TDMA networks with buffered nodes
TypeArticle
Pagination3948-3960
Issue Number8
Volume Number18
dc.accessType Abstract Only


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