Open AccessTrellis‐coded CIOD using conjugate symmetric rotated QAM signal set
Author(s) -
Kim C.J.,
Heo S.W.,
Lee H.K.
Publication year - 2013
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2013.0078
Subject(s) - qam , quadrature amplitude modulation , coding gain , encoder , signal (programming language) , constellation diagram , transmitter power output , coding (social sciences) , trellis (graph) , computer science , mathematics , algorithm , electronic engineering , telecommunications , decoding methods , bit error rate , engineering , statistics , transmitter , channel (broadcasting) , programming language
A trellis‐coded coordinate‐interleaved orthogonal design (TC‐CIOD) for four transmit antennas with a rotated QAM base signal set is introduced. To design a high rate pre‐encoder the base signal set is expanded by conjugating the rotated QAM signals without changing the transmit signal set at each transmit antenna. The proposed TC‐CIOD provides coding gain without increasing peak‐to‐average‐power ratio.