The Secrecy Capacity of Block Fading Multiuser Wireless Networks - Inria - Institut national de recherche en sciences et technologies du numérique Accéder directement au contenu
Communication Dans Un Congrès Année : 2013

The Secrecy Capacity of Block Fading Multiuser Wireless Networks

Résumé

—The resilience of block fading wireless orthogonal frequency division multiple access (OFDMA) networks to passive eavesdroppers is investigated. The network secrecy capacity is evaluated in scenarios involving a base station and several terminals , some of which constitute passive eavesdroppers. Assuming a block fading Rayleigh channel, the probability of a secrecy outage during a transmission frame is evaluated with respect to a target secrecy rate τ in the following cases: (i) in the absence of any cooperation between the network nodes, and, (ii) when the full multiuser diversity is exploited both by the legitimate users as well as by the eavesdroppers. Remarkably, it is demonstrated that in a network of as few as 12 legitimate users and a single eavesdropper it is possible to transmit 1 bit/sec/Hz with a probability of secrecy outage less than 1%. Furthermore, the delay constrained secrecy capacity of this network is evaluated when the full channel state information (CSI) is available both at the base station and at all receiving nodes. A secure waterfilling scheme is discussed, satisfying a short-term power constraint. Index Terms—OFDMA networks, probability of secrecy out-age, block fading Gaussian channel, delay constrained secrecy capacity, secure waterfilling
Fichier principal
Vignette du fichier
ATC_final.pdf (159.49 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01686240 , version 1 (17-01-2018)

Identifiants

  • HAL Id : hal-01686240 , version 1

Citer

Arsenia Chorti, Katerina Papadaki, Panagiotis Tsakalides, Harold Vincent Poor. The Secrecy Capacity of Block Fading Multiuser Wireless Networks. 2013 International Conference on Advanced Technologies for Communications (ATC 2013) , Oct 2013, Saigon, Vietnam. ⟨hal-01686240⟩
81 Consultations
95 Téléchargements

Partager

Gmail Facebook X LinkedIn More