Title :
The enhancement of system performance in quasi-orthogonal space-time-frequency codes
Author :
Shahabinejad, Mostafa ; Morsali, Alireza
Author_Institution :
Shahid Bahonar Univ. of Kerman, Kerman, Iran
Abstract :
In this paper, we describe how full-diversity quasi-orthogonal space-time-frequency block codes (QOSTFBCs) suffer from low coding advantage. Then, we propose a method for improving the coding advantage of this code family, and we subsequently modify their performances. Simulation results determine that our proposed method is very effective, and in some cases, it could enhance the performance of the MIMO-OFDM space-time-frequency coded system which works based on QOSTFBCs as much as 6 dB.
Keywords :
MIMO communication; OFDM modulation; orthogonal codes; space-time block codes; MIMO-OFDM space-time-frequency coded system; coding advantage; quasi-orthogonal space-time-frequency block codes; system performance; Block codes; Delay; Fading; OFDM; Receiving antennas; Transmitting antennas;
Conference_Titel :
Software, Telecommunications and Computer Networks (SoftCOM), 2011 19th International Conference on
Conference_Location :
Split
Print_ISBN :
978-1-4577-1439-9