L
Lifeng Lai
Researcher at University of California, Davis
Publications - 260
Citations - 9028
Lifeng Lai is an academic researcher from University of California, Davis. The author has contributed to research in topics: Communication channel & Decoding methods. The author has an hindex of 39, co-authored 240 publications receiving 8443 citations. Previous affiliations of Lifeng Lai include Zhejiang University & University of California.
Papers
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Journal ArticleDOI
On the Secrecy Capacity of Fading Channels
TL;DR: The positive impact of fading on the secrecy capacity is revealed and the critical role of rate adaptation, based on the main channel CSI, in facilitating secure communications over slow fading channels is established.
Journal ArticleDOI
The Relay–Eavesdropper Channel: Cooperation for Secrecy
Lifeng Lai,H. El Gamal +1 more
TL;DR: The utility of user cooperation in facilitating secure wireless communications is established and an outer-bound on the optimal rate-equivocation region is derived and the novel noise-forwarding strategy is used to illustrate the deaf helper phenomenon.
Posted Content
On the Secrecy Capacity of Fading Channels
TL;DR: In this article, the authors considered the secure transmission of information over an ergodic fading channel in the presence of an eavesdropper and characterized the secrecy capacity of such a system under the assumption of asymptotically long coherence intervals.
Proceedings ArticleDOI
On the Secrecy Capacity of Fading Channels
TL;DR: The positive impact of fading on the secrecy capacity is revealed and the critical role of rate adaptation, based on the main channel CSI, in facilitating secure communications over slow fading channels is established.
Journal ArticleDOI
Cognitive Medium Access: Exploration, Exploitation, and Competition
TL;DR: This paper considers the design of efficient strategies that allow cognitive users to choose frequency bands to sense and access among multiple bands with unknown parameters to avoid the possible selfish behavior of the cognitive users.