Performance analysis of LMS based MIMO relay communication | |
| Author | Dhungana, Yamuna |
| Call Number | AIT Thesis no.TC-11-02 |
| Subject(s) | MIMO systems Landsat satellites Artificial satellites in telecommunication |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Telecommunications, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. TC-11-02 |
| Abstract | Relay assisted cooperative communication has received tremendous attention as a means to achieve spatial diversity and to extend coverage without large transmit power requirement. Performance and capacity gain of multiple input multiple output (MIMO) systems are well known. When MIMO is feasible, augmenting the classical relay channels with multiple antennas that reap the benefits of both MIMO and cooperative relays is an intelligent approach. MIMO relaying technology is a new paradigm with tremendous potential that has already been proposed as a next major extension of IEEE 802.16 Worldwide Interoperability for Microwave Access (WiMAX) standard. Future satellite communication should not be immune to such innovative development trends of terrestrial communication. Adaption of such trends of terrestrial communication, relaying and cooperation with MIMO technology, to satellite communication via terrestrial relay nodes forming Hybrid Satellite/Terrestrial Network is investigated in this research. A novel dual hop MIMO relay system with beamforming for application to land mobile satellite (LMS) downlink communication is proposed and performance is analyzed over Shadowed Rician and Rayleigh fading deriving exact closed form expressions for outage probability, average symbol error rate (SER) and ergodic capacity. Both regenerative and variable gain non-regenerative relays are considered in the analysis. The proposed system is initially analyzed based on independent fading assumption of the channels which is later extended to correlated case to quantify the detrimental effects of antenna correlation in MIMO communication. Addressing the scenario of no channel state information (CSI) available at the source and the relay, the concept of relay transmission in LMS communication is extended with a different dual hop MIMO relay system. Dual hop MIMO orthogonal space time block coding (OSTBC) with non-coherent amplify and forward (AF) relaying is investigated for such scenario considering Shadowed Rician and Rayleigh fading for the two hops. Moment generating function (MGF) based approach is used to evaluate the SER performance of the system for which the MGF of the output signal-to-noise ratio (SNR) of the system is first derived in exact closed form. First and second moments for amount-of-fading (AoF) performance evaluation are then derived accordingly using the MGF. |
| Year | 2011 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. TC-11-02 |
| 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) | Teerapat Sanguankotchakorn;Poompat Saengudomlert; |
| Scholarship Donor(s) | Government of Finland-AIT Fellowship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2011 |