Performance analysis of one-way and two-way amplify-forward relaying in rayleigh, mixed rician and Nakagami-m fading channels | |
| Author | Chaudary, Muhammad Hasanain |
| Call Number | AIT Diss no.TC-13-01 |
| Subject(s) | Coding theory Wireless communication systems Data transmission systems |
| Note | A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy, in Telecommunications, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Dissertation ; no. TC-13-01 |
| Abstract | In this dissertation, the performance analysis of analog network coding (ANC) based amplify and forward (AF) two-way relay network (TWRN) over mixed Rician and Nakagami-m (asymmetric) fading environments is presented. For this purpose, the closed form expression for both the cumulative distribution function (CDF) and probability distribution function (PDF) of the instantaneous end-to-end (I-ETE) SNR are derived. Using those, the closed form expression for the first moment, second moment, and the average symbol error rate (ASER) for M-PSK modulated signals are obtained. The system performance of ANC is analyzed in terms of outage probability (OP), ASER, and ergodic capacity. Furthermore, OP for higher SNR scenario to identify more details of system performance is investigated. The validation of the analytical closed form expression is done by utilizing Mathematica software tool and also by performing extensive simulation experiments. In addition, the performance of a network coded relay network is analyzed. The relay node operates under the decode and forward (DF) relaying scheme and the fading channels are modeled under different fading environments that are Rayleigh, Nakagami-m and Rician. The outcome of this work indicates that, the utilization of Alamouti coding scheme results in the improvement of overall system performance. The closed form expression of moment generating function (MGF) are obtained over various fading channels. The performance of network coding (NC) system is analyzed in terms of symbol error rate (SER) and OP. The MGF based approach is followed for the derivation of SER closed form expression for BPSK, QPSK and 16-QAM modulation scheme. Apart from network coding (NC), the performance of the multiuser relay network (MRN) is being carried out; its setup includes only a single amplify and forward relay, which operates over symmetric fading channels (SFC) along with orthogonal space-time block coding (OSTBC). To analyze the OP of channel state information (CSI)-basedgain MRN, the exact and thorough analysis is conducted by deriving the closed form expression under Rayleigh fading conditions. Thus, the closed form expression for OP and PDF of the I-ETE SNR is being derived. Furthermore, compact closed form expression for MGF, first moment, second moment, and ergodic capacity is derived. The results indicate the performance enhancements presented by opportunistic scheduling, and unveil the effect on overall system performance due to different relay locations with respect to source and destination. |
| Year | 2013 |
| Corresponding Series Added Entry | Asian Institute of Technology. Dissertation; no. TC-13-01 |
| Type | Dissertation |
| 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) | Poompat Saengudomlert;Mongkol Ekpanyapong; |
| Scholarship Donor(s) | Higher Education Commission (HEC), PakistanAIT Fellowship; |
| Degree | Thesis (Ph.D.) - Asian Institute of Technology, 2013 |