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Advances in Cognitive Radio Networks
Douglas C. Sicker

The following are the bullet points from his talk:
  • His research interests lie at the intersection of technology and policy.
  • He talked about his current researches.
  • He first presented the radio spectrum allocation.
  • The band appears to be rather crowded. It is allocated but not always used; usage varies across band, time and location.
  • So, we need a cognitive radio so that we can utilize spectrum more efficiently.
  • He used software defined radios to sense the environment and learn how to adapt.
  • What makes cognitive radio networks hard: interference avoidance, detection, computational complexity and security.
  • Problem: Interference; Goal: System dynamically adapts to maintain performance goals in presence of interference.
  • He varied a lot of parameters to achieve this goal.
  • He worked on both simulation and implementation.
  • He conducted a measurement and did multivariate analysis to understand the interactions.
  • He used multifactor/knobs to improve the bit loss.
  • Basic statistical methods and experimentally informed algorithm design provide a useful mechanism for adapting a radio.
  • He also mentioned the security issues in his system.

Last modified 29 November 2007 at 9:59 pm by panichsa