id author title date pages extension mime words sentence flesch summary cache txt 0k225b01f79 Brian P Dunn Overhead in Communication Systems as the Cost of Constraints 2010 .txt text/plain 194 7 30 For multi-access communication systems, we compute constrained capacity regions for two binary additive channels with feedback and develop inner and outer bounds on the capacity region of the packet collision channel with feedback that appear to be tight numerically. Finally, we study information-theoretic security in timing channels and show that non-zero secrecy rates can be achieved over the wiretap timing channel using a deterministic encoder. cache/0k225b01f79.txt txt/0k225b01f79.txt