Title :
Space-time coding with multilevel protection for multimedia transmission in MIMO systems
Author :
Weng, Jian-Jia ; Wang, Chung-Hsuan ; Jeng, Li-Der
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
In this paper, space-time coding schemes with full transmit diversity are investigated for unequal error protection (UEP). Effective performance indicies are proposed to measure the intrinsic UEP capability of space-time codes, based on which we demonstrate that space-time trellis codes and superorthogonal space-time trellis codes can be used for UEP as long as the corresponding encoders are properly designed. In addition, UEP convolutional codes are concatenated with space-time block codes to construct another full-diversity UEP scheme which can provide more choices of UEP levels. Finally, good UEP codes are given by a computer search.
Keywords :
MIMO communication; block codes; convolutional codes; diversity reception; error analysis; multimedia communication; orthogonal codes; space-time codes; trellis codes; MIMO systems; UEP; convolutional codes; multilevel protection; multimedia transmission; space-time block codes; space-time coding; super-orthogonal space-time trellis codes; transmit diversity; unequal error protection; Block codes; Computational modeling; Concatenated codes; Forward error correction; MIMO; Multimedia systems; Product codes; Protection; Signal to noise ratio; Upper bound;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5122-7
Electronic_ISBN :
978-1-4244-5123-4
DOI :
10.1109/PIMRC.2009.5450348
