The EECS Department welcomes Natasha Devroye of the University Illinois at Chicago.

Prof. Devroye will speak on Wednesday May 30 at 2 p.m. in L324 in the Technological Institute

Abstract:   In multi-user two-way channels nodes are both sources and destinations of messages. This allows for ``adaptation'' at or ``interaction'' between the nodes --  the next channel inputs may be a function of the past received signals at a particular node.   How to best  adapt is key to two-way communication problems, rendering them complex and challenging.  However, examples exist of channels where adaptation is not beneficial from a capacity perspective;  it is known that for the point-to-point two-way modulo 2 adder and Gaussian channels,  adaptation does not increase capacity. We demonstrate several deterministic multi-user two-way channel models where adaptation is useless and remark on extensions to noisy two-way Gaussian interference channels.

To read the Prof. Devroye's bio please click the "More Info" link above.