Open AccessEssence of 16‐QAM labelling diversity
Author(s) -
Krasicki M.
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.2012.4275
Subject(s) - labelling , qam , diversity (politics) , computer science , quadrature amplitude modulation , telecommunications , electronic engineering , engineering , psychology , sociology , bit error rate , channel (broadcasting) , criminology , anthropology
Labelling diversity has appeared to be an efficient method to improve the performance of bit‐interleaved space‐time coded modulation with iterative decoding. It consisists in applying two different labelling maps within two spacial streams of the transmitter, which improves the benefits derived from multi‐antenna transmission. This reported work reveals a cardinal rule the two labellings must obey to become the optimal pair for labelling diversity purposes. It is concluded from results of a generalised binary switching optimisation algorithm, delivered herein, and from distance spectrum analysis.