191 citations · 806 across the 53 of their papers we have counts for
Showing 2006Show all
2 papers · 1 filter
cs.IT2006★ 14 cited
The Relay-Eavesdropper Channel: Cooperation for Secrecy
Lifeng Lai, Hesham El Gamal
This paper establishes the utility of user cooperation in facilitating secure wireless communications. In particular, the four-terminal relay-eavesdropper channel is introduced and…
cs.IT2006★ 55 cited
On the Secrecy Capacity of Fading Channels
Praveen Kumar Gopala, Lifeng Lai, Hesham El Gamal
We consider the secure transmission of information over an ergodic fading channel in the presence of an eavesdropper. Our eavesdropper can be viewed as the wireless counterpart of…