A High Spectral Efficient Non-Binary TTCM-assisted G2 STBC-OFDM for 4G Systems | ||
| Al-Ma'mon College Journal | ||
| Article 1, Volume 0, Issue 22, June 2018, Pages 254-272 | ||
| Authors | ||
| Abdulkareem S. Abdallah; Raad H. Thaher; Riyadh A. Al-hilali | ||
| Abstract | ||
| This paper deals with the MIMO-OFDM technique that candidates with the fourth generation (4G) of the wireless communication systems. This technique can provide high data rate transmission without increasing transmit power and expanding bandwidth. It also it can efficiently use space resources. This paper presents the channel coding assisted STBC-OFDM systems, and employs the Coded Modulation techniques (CM), since the signal bandwidth available for wireless communications is limited. Furthermore, a non-binary Turbo Trellis Coded Modulation (TTCM) decoder-based multidimensional MAP algorithm-assisted G2 STBC-OFDM is designed and implemented. The idea of Non-binary codes has been extended for symbols defined over rings of integers, which outperform binary codes with only a small increase in decoding complexity. The simulation results show that the performance of the TTCM decoding algorithm outperforms the binary decoding methods and is suitable to deal with error-control coding of the STBC-OFDM schemes. | ||
| Keywords | ||
| Turbo codes; TTCM; non; binary error correcting codes; Rings of integers; MIMO; OFDM MIMO; OFDM; STBC | ||
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