| Abstract | In this dissertation, a hybrid/integrated satellite-terrestrial system with AF (amplify-
and-forward) cooperative diversity scheme using single, multiple and MIMO (multiple
input and multiple output) enabled xed relay node has been investigated. High data
rate satellite services to mobile and especially indoor users can be provided by using
cooperative xed terrestrial relay nodes. The performance measure parameters of the
proposed systems are the outage probability, symbol error rate (SER) and ergodic
capacity. The mathematical analysis has been carried out on non independent and
identically distributed (non-iid) shadowed Rician, Rician, Rayleigh, and Nakagami-
m fading distributions. Real satellite channel parameters have been taken from the
literature for modeling a number of shadowing conditions from deep shadowed to a
light shadowed satellite link to make our analysis closer to a practical system. From
the literature review, it is found that the outage probability, SER and ergodic capacity
closed-form mathematical expressions have not been derived for a hybrid/integrated
satellite terrestrial cooperative system under non-iid channels. To assist performance
measuring parameters, we have formulated closed-form analytical expressions of the
outage probability, SER, and ergodic capacity.
Finally, we have compared the performance of a multi-hop, and dual-hop MIMO
enabled relay systems. The results show that the hybrid satellite-terrestrial system
with MIMO enabled relay is generating the same or better SER and outage curves as
the multi-hop system. Moreover, ergodic capacity of the MIMO relay system increases
as the number of transmitting and receiving antennas at the relay node increases. Thus,
the main limitation of bandwidth degradation in cooperative relaying can be improved
by using MIMO enable relay node. |