Title :
A Full-Rate Full-Diversity 2Ã\x972 Space-Time Code for Mobile WiMAX Systems
Author :
Sezginer, Serdar ; Sari, Hikmet
Author_Institution :
Sequans Commun., Paris, France
Abstract :
The recently developed IEEE 802.16e specifications for broadband wireless access include three multiple-input multiple-output (MIMO) profiles employing 2×2 space-time codes (STCs) and two of those are mandatory on the downlink of mobile WiMAX systems. One of these is full rate, and the other is full diversity, but neither of them has both of the desired features. The third profile, which is not mandatory, is both a full-rate and a full-diversity code, but it has a high decoder complexity. In this paper, we develop a full-rate full-diversity STC of size 2×2 which can be optimally detected at a substantially lower complexity than conventional schemes. This makes it a suitable candidate for future evolutions of WiMAX systems toward higher data rates and performance.
Keywords :
MIMO communication; WiMax; broadband networks; decoding; diversity reception; mobile radio; space-time codes; IEEE 802.16e specifications; broadband wireless access system; decoder complexity; diversity reception; mobile WiMAX systems; multiple-input multiple-output system; space-time code; Constellation diagram; Decoding; Diversity reception; MIMO; Mobile communication; Receiving antennas; Space time codes; Transmitters; Transmitting antennas; WiMAX; MIMO systems; ML detection; WiMAX; space-time codes;
Conference_Titel :
Signal Processing and Communications, 2007. ICSPC 2007. IEEE International Conference on
Conference_Location :
Dubai
Print_ISBN :
978-1-4244-1235-8
Electronic_ISBN :
978-1-4244-1236-5
DOI :
10.1109/ICSPC.2007.4728344
