ABSTRACT
In this thesis, we investigated
on antenna diversity techniques in wireless communication systems that employ
multiple transmitting and receiving antennas to achieve spatial diversity,
mitigate signal fade and to increase the data rate transmission without
increasing bandwidth channels. In particular, we focused on Alamouti s (STBC)
transmit diversity technique, a technique with N transmitting simulation tool,
we provided simulation results demonstrating the performance for two transmit
and one, two, three and four receive antennas over Rayleigh fading channel. We
illustrated that using multiple transmit antennas and space-time block coding
outstanding performance could be obtained, under the impact of channel fading.
The signal detection algorithm used in this technique was based on maximum
likelihood detector for receiving the original data from the received signals
on the M antennas. The result from the simulation obtained over Rayleigh
channel using two transmitting antennas and different receiving antennas. It
was observed that whenever the numbers ofreceiving antennas were increased the
performance of the system increased i.e. form signal quality point of view the
reception of multiple copies of the transmitted data decreased the error
probability of the system. It was also observed that the bit error rate
increased as M increased. From the channel capacity point of view, it
demonstrated that multiple antennas had the potential to dramatically increase
the achievable data rates, thus converting wireless channels from narrow to
wide data channel. Space-time block codes (STBC) realised these gains by
introducing temporal and spatial correlations into the transmitted signals from
different antennas without increasing the total transmitted power or
transmission bandwidth.
CHUKWUEMEKA, E (2023). Antenna Diversity Technique for Transmission over Fading Channel:- Emole, Chukwuemeka E.. Mouau.afribary.org: Retrieved Nov 14, 2024, from https://repository.mouau.edu.ng/work/view/antenna-diversity-technique-for-transmission-over-fading-channel-emole-chukwuemeka-e-7-2
ENOCH, CHUKWUEMEKA. "Antenna Diversity Technique for Transmission over Fading Channel:- Emole, Chukwuemeka E." Mouau.afribary.org. Mouau.afribary.org, 29 Nov. 2023, https://repository.mouau.edu.ng/work/view/antenna-diversity-technique-for-transmission-over-fading-channel-emole-chukwuemeka-e-7-2. Accessed 14 Nov. 2024.
ENOCH, CHUKWUEMEKA. "Antenna Diversity Technique for Transmission over Fading Channel:- Emole, Chukwuemeka E.". Mouau.afribary.org, Mouau.afribary.org, 29 Nov. 2023. Web. 14 Nov. 2024. < https://repository.mouau.edu.ng/work/view/antenna-diversity-technique-for-transmission-over-fading-channel-emole-chukwuemeka-e-7-2 >.
ENOCH, CHUKWUEMEKA. "Antenna Diversity Technique for Transmission over Fading Channel:- Emole, Chukwuemeka E." Mouau.afribary.org (2023). Accessed 14 Nov. 2024. https://repository.mouau.edu.ng/work/view/antenna-diversity-technique-for-transmission-over-fading-channel-emole-chukwuemeka-e-7-2