- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
Design of Space Time Trellis Coded OFDM | ||
| Journal of Engineering | ||
| Article 1, Volume 14, Issue 3, 2008, Pages 0-0 | ||
| Authors | ||
| Ismael Shenan Dshar; S. M. Abbas | ||
| Abstract | ||
| Space Time Trellis Code (STTC) is a technique that can be used to improve the performance of the Orthogonal Frequency Division Multiplexing (OFDM) system over wireless channels by providing both coding gain and diversity gain. STTC is combined from two codes, Trellis Code Modulation (TCM) as an inner code and Space Time Block Code (STBC) as an outer code. TCM which combines the choice of a modulation scheme with that of a convolutional code provides the coding gain, and the other code provides the diversity gain. Simulation is done over flat fading and frequency selective Rayleigh fading channel for Eight Phase Shift Keying (8-PSK) TCM. It found that the best results are obtained for the case of two transmitters and three receivers which have a gain of about 18dB over that without STBC. | ||
| Keywords | ||
| Orthogonal frequency division multiplexing; Space Time Block Code; Trellis Coded Modulation | ||
|
Statistics Article View: 205 PDF Download: 150 |
||