EE Seminar: On the Construction of Polar Codes for Channels with Moderate Input Alphabet Sizes

~~ (The talk will be given in English)

Speaker:  Dr. Ido Tal
                      EE, Technion

Monday, December 7th, 2015
15:00 - 16:00
Room 011, Kitot Bldg., Faculty of Engineering
On the Construction of Polar Codes for Channels with Moderate Input Alphabet Sizes
Abstract
Current deterministic algorithms for the construction of polar codes can only be argued to be practical for channels with small input alphabet sizes. We show that any construction algorithm for channels with moderate input alphabet size which follows the paradigm of ``degrading after each polarization step'' will inherently be impractical with respect to a certain ``hard'' underlying channel. This result also sheds light on why the construction of LDPC codes using density evolution is impractical for channels with moderate sized input alphabets.
Bio
Ido Tal obtained his B.Sc., M.Sc., and Ph.D. from the Computer Science department at Technion. After completing his Ph.D. he was a postdoctoral scholar at the University of California at San Diego. He is currently an assistant professor at the electrical engineering department at Technion