Hao Chen's guest appearances

Hao Chen

CERIAS Weekly Security Seminar - Purdue University

Things to Keep in Mind 

FDR Quick Talk

Ryan Henry

Cory Doctorow

Doug Smith

Larry Ponemon

George Heron

Jason Johnson

Laura Thomas

Eli Lilly

Stephen Elliott

Tony Sager

David Carroll

Jack Daniel

Joe Judge

Chris Reed

Richard III

OwlTail

On the Season Finale of Things to Keep in Mind, Zel talks about the importance of being better and doing better and shares some advice on how you can achieve consistent growth in your life. Zel also shares the story of his creative journey. Later in the podcast special guest Hao Chen (his good friend/roommate) joins to talk about ReviewCast. ReviewCast is Hao and Zel's brand new podcast that will be coming to anchor within the next week or so where they will be reviewing all things entertainment from movies to music and everything in between. Throughout the show this week Zel play's new music such as My Brother by Victor Rashad, Outro by Kendell Malik, and his new single Catch 22 by A.E.Charles featuring Chris Green which is available on all music sites to stream and download. Thanks for all the support and love you all have shown throughout this season. --- This episode is sponsored by · Anchor: The easiest way to make a podcast.  https://anchor.fm/app--- Send in a voice message: https://anchor.fm/anzel-nichols/message

On the Season Finale of Things to Keep in Mind, Zel talks about the importance of being better and doing better and shares some advice on how you can achieve consistent growth in your life. Zel also shares the story of his creative journey. Later in the podcast special guest Hao Chen (his good friend/roommate) joins to talk about ReviewCast. ReviewCast is Hao and Zel's brand new podcast that will be coming to anchor within the next week or so where they will be reviewing all things entertainment from movies to music and everything in between. Throughout the show this week Zel play's new music such as My Brother by Victor Rashad, Outro by Kendell Malik, and his new single Catch 22 by A.E.Charles featuring Chris Green which is available on all music sites to stream and download. Thanks for all the support and love you all have shown throughout this season. --- This episode is sponsored by · Anchor: The easiest way to make a podcast. <a href="https://anchor.fm/app" rel="nofollow" target="_blank">https://anchor.fm/app</a> --- Send in a voice message: <a href="https://anchor.fm/anzel-nichols/message" rel="nofollow" target="_blank">https://anchor.fm/anzel-nichols/message</a>

Ep. 12 - Be Better, Do Better (Feat. Hao Chen)

Third Generation (3G) cellular networks utilize time-varying andlocation-dependent channel conditions to provide broadband services. They employ opportunistic scheduling to efficiently utilize spectrum under fairness or QoS constraints. Opportunistic scheduling algorithms rely on collaboration among all mobile users to achieve their design objectives.  However, we demonstrate that rogue cellular devices can exploit vulnerabilities in opportunistic scheduling algorithms, such as Proprotional Fair (PF), to usurp the majority of time slots in 3G networks.  Our simulations show that only five rogue device per 50-user cell can use up to 90% of the time slots, and can cause 2 seconds of end-to-end inter-packet transmission delay on VoIP applications for every user in the same cell, rendering VoIP applications useless.  To defend against these attacks, we explore several detection and prevention schemes, including modifications to the PF scheduler and a secure handoff procedure.This is a joint with with Denys Ma, Radmilo Racic, and Xin Liu. About the speaker: Hao Chen is an assistant professor at the Department of Computer Science at the University of California, Davis.  He received his Ph.D. in Computer Science from the University of California, Berkeley in 2004. His primary research interest is computer security, with an emphasis on wireless security, Web security, and software security.  He received an NSF CAREER award for supporting his research on wireless security in 2007.  More information is available at:http://www.cs.ucdavis.edu/~hchen/

Third Generation (3G) cellular networks utilize time-varying andlocation-dependent channel conditions to provide broadband services. They employ opportunistic scheduling to efficiently utilize spectrum under fairness or QoS constraints. Opportunistic scheduling algorithms rely on collaboration among all mobile users to achieve their design objectives. However, we demonstrate that rogue cellular devices can exploit vulnerabilities in opportunistic scheduling algorithms, such as Proprotional Fair (PF), to usurp the majority of time slots in 3G networks. Our simulations show that only five rogue device per 50-user cell can use up to 90% of the time slots, and can cause 2 seconds of end-to-end inter-packet transmission delay on VoIP applications for every user in the same cell, rendering VoIP applications useless. To defend against these attacks, we explore several detection and prevention schemes, including modifications to the PF scheduler and a secure handoff procedure.This is a joint with with Denys Ma, Radmilo Racic, and Xin Liu. About the speaker: Hao Chen is an assistant professor at the Department of Computer Science at the University of California, Davis. He received his Ph.D. in Computer Science from the University of California, Berkeley in 2004. His primary research interest is computer security, with an emphasis on wireless security, Web security, and software security. He received an NSF CAREER award for supporting his research on wireless security in 2007. More information is available at:<a href="http://www.cs.ucdavis.edu/~hchen/" rel="nofollow" target="_blank">http://www.cs.ucdavis.edu/~hchen/</a>

Hao Chen, Exploiting Opportunistic Scheduling in Cellular Data Networks