Orthogonal frequency division multiplexing (OFDM) is the dominant interface, which is used extensively for 4G LTE communication systems.
Space-time parallel cancellation (STPC) is employed in conjunction with OFDM, as the scheme provides diversity and coding gain along with inter-carrier interference (ICI) mitigation. ICI may be caused by carrier frequency offset (CFO), by the Doppler spread due to channel time-variation or, to a lesser extent by, sampling frequency offsets (SFOs).
This thesis estimates the bit error rate (BER) using a two-receiver system at the user end to illustrate how spatial resolution can increase efficiency of a mobile communication system. The BER is estimated using the outputs obtained at both receivers and then combining them to receive a better BER as compared to the 4x1 (4 transmitters, 1 receiver) system.
Simulation results show that the BER results for a 4x2 (4 transmitters, 2 receiver) system are much better than a 4x1system with code rate 1 and code rate 0.5 in a COST 207 channel model.
|Advisor:||Yeh, Hen-Geul Henry|
|Commitee:||Chassiakos, Anastasios, Yang, Hengzhao|
|School:||California State University, Long Beach|
|School Location:||United States -- California|
|Source:||MAI 57/01M(E), Masters Abstracts International|
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