Analisis Kinerja Sistem MIMO-OFDM pada Kanal Rayleigh dan AWGN dengan Modulasi QPSK
ABSTRACT: OFDM (Orthogonal
Frequency Division Multiplexing) is a transmission technique uses multiple
frequencywhich each carrier is orthogonal. Each sub-carriers are modulated with
a conventional modulation technique at a low symbol rate. This modulation can
be modulated Phase Shift Keying (PSK).Problem of interference or multipath
fading can be handled withMIMO (Multiple Input Multiple Output). This system
uses a number of antennatransmitterand receiverto make the signal reflection as
the main signal amplifier so that will support each other . This final project simulates performance of MIMO-OFDM
with Alamouti STBC (Space Time Block Code) and MRC (Maximal Ratio
Combining) withQPSK modulation at Rayleigh Fading Distribution Channel and AWGN
(Additive White Gaussian Noise). The simulation results shows it need s Eb/No =
5dB to achieve BER = 10-5in both MIMO techniques.BER = 0 when Eb/No greater
than 5 dB at STBC and BER = 0 when Eb/No greater than 5 dB at STBC . Better BER
of MIMO STBC than MIMO MRC found on
almost all values of Eb/No. Based on the simulation, performance ofSTBC-OFDM technique have
advantages 1 dB fromMRC-OFDM technique to achieve BER = 0.
Penulis: M. LUKMANUL HAKIM, SUKISWO,
IMAM SANTOSO
Kode Jurnal: jptlisetrodd100125
