Title :
Diversity-Embedded Space-Time Codes with Sigma Mapping of QAM Constellations
Author :
Nguyen, Ha X. ; Nguyen, Ha H. ; Le-Ngoc, Tho
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Saskatchewan, Saskatoon, SK
Abstract :
This paper applies the sigma mapping of M-QAM in linear diversity-embedded space-time block codes (LDE-STBC) to achieve different diversity levels and various coding gains for unequal error protection (UEP). By controlling the basis vectors of sigma mapping, the bit error rate (BER) performance of each bit in a layer can be made to satisfy its quality-of-service (QoS) requirement. Moreover, with the low decoding complexity offered by sigma mapping, highly-flexible codes can be designed.
Keywords :
MIMO communication; block codes; decoding; diversity reception; error statistics; linear codes; quadrature amplitude modulation; quality of service; space-time codes; BER; M-QAM constellation; MIMO; QoS; bit error rate; decoding complexity; fading channels; linear diversity-embedded space-time block code; quality-of-service; sigma mapping; unequal error protection; AWGN; Bit error rate; Block codes; Decoding; Error correction codes; MIMO; Phase shift keying; Power system protection; Quadrature amplitude modulation; Space time codes;
Conference_Titel :
Vehicular Technology Conference, 2008. VTC 2008-Fall. IEEE 68th
Conference_Location :
Calgary, BC
Print_ISBN :
978-1-4244-1721-6
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2008.134
