Analysis of MIMO - OFDM cooperative diversity systems | |
| Author | Dao Anh Quan |
| Call Number | AIT Thesis no.TC-08-05 |
| Subject(s) | MIMO systems Orthogonal frequency division multiplexing |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Telecommunications Engineering, School of Engineering and Management |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. TC-08-05 |
| Abstract | MIMO-OFDM is a technology that transmits and receives radio signals through multiple antennas. It allows deploying in wireless broadband systems that communicate in Non-Line of Side (NLOS) environment. Cooperative communication is a technique which exploits spatial diversity of wireless radio channel by forming antenna arrays to achieve full diversity at destination. This thesis analyzes MIMO-OFDM cooperative diversity systems for mobile wireless communication in Nakagami-m fading channels with decode and forward method including two scenarios. The first scenario includes two antennas at source, two antennas at relay and two antennas at destination. The second scenario includes two antennas at source, one antenna at relay and two antennas at destination. We will combine the symbols at destination and confirm BER of systems. The results of simulation are presented to evaluate both scenarios. Simulations for both scenarios with orthogonal space time block code (OSTBC) and BPSK modulation are provided. Then they are presented and compared each other to select the best scenario. The upper bound expression of 2x2x2 scenario for BPSK modulation is derived. In upper bound expression, function is classified into two parts. These two parts are also error functions and affect diversity through distinct means. Hence to obtain full diversity at destination, we will analyze them separately. The simulation results are showed to compare with the accuracy of the new upper bound expression. |
| Year | 2008 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. TC-08-05 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Telecommunications (TC) |
| Chairperson(s) | Rajatheva, R.M.A.P. |
| Examination Committee(s) | Erke, Tapio;Teerapat Sanguankotchakorn |
| Scholarship Donor(s) | - |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2008 |