Title :
Iterative decoding and multiuser communication using sparse space codes for MIMO channels
Author :
Dhakal, Sabin ; Sexton, Thomas A. ; Hranilovic, Steve
Author_Institution :
BlackBerry, Irving, TX, USA
Abstract :
We propose a new decoding algorithm for sparse space codes (SSC) transmission in an open-loop under-determined MIMO channel. The basis pursuit detector algorithm is combined with the sum-product algorithm to facilitate an iterative decoding using the LDPC based outer codes and the SSC based inner codes. In addition, a novel idea on multiuser detection using SSC codes is presented for an uplink MIMO channel.
Keywords :
MIMO systems; channel coding; iterative decoding; multi-access systems; multiuser detection; parity check codes; LDPC; MIMO channels; basis pursuit detector algorithm; iterative decoding; low density parity check codes; multiuser communication; multiuser detection; open-loop under-determined MIMO channel; sparse space codes; sum-product algorithm; Encoding; Iterative decoding; Receiving antennas; Signal to noise ratio; Transmitting antennas; Vectors; Compressed sensing; LDPC Codes; MIMO;
Conference_Titel :
Information Theory (CWIT), 2013 13th Canadian Workshop on
Conference_Location :
Toronto, ON
DOI :
10.1109/CWIT.2013.6621614
