Abstract:
In a wireless communication system,
cooperative diversity can be used to combat fading effects.
In cooperative diversity, the system uses idle antennas,
which are located at different locations, as relays.
Cooperative communication with OFDM is widely used in
communication systems and it enhances communication
performance of the system. There are different methods to
enhance the performance of OFDM systems, carrier
interferometry code is one of them. While, carrier
interferometry code increase the performance of the system
and also reduces PAPR level. Carrier interferometry codes
can be implemented on an OFDM system by using FFT
and wavelet. In this paper we investigate the effect of the
relay position on the carrier interferometry cooperative
OFDM system which uses wavelet transform. The effect of
the relay position is investigated over different combiners
and relaying strategies. The results show that, relay
position effects the performance of the system and optimal
location for the relay is right between source and
destination.
