Atmodihardjo, Tengku Navanta (2012) Analisis kinerja sistem MIMO-OFDM dengan MATLAB = Performance analysis of MIMO-OFDM systems with MATLAB. Bachelor thesis, Universitas Pelita Harapan.
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Abstract
The demand for high speed and reliable wireless-based communications is increasing. One method to meet these needs is the use of multiple input multiple output technique (MIMO) and orthogonal frequency division multiplexing
(OFDM). MIMO uses multiple antennas at the transmitter and receiver so that it can increase the bitrate and reduce error. The use of OFDM is to overcome the effects of multipath.
In this final project, MIMO-OFDM system with two types of receivers, Zero Forcing (ZF) and Minimum Mean Square Error (MMSE) is simulated. The MIMO technique used in this simulation is Spatial Multiplexing. Simulation is
performed using Matlab. The channel has 4 multipath taps.
Simulation results are shown in BER vs Eb/No curve. The results show that increasing the number of transmit antennas will increase the data rate by a factor of the number of transmit antennas, while increasing the number of receive
antennas will produce better BER curves. MMSE receiver produces better Eb/No curves than ZF. A 2x2 system with ZF receiver has BER 1.1950551x10-1 at Eb/No=8 dB. At BER=10-3, the use of eight receiver antennas (2x8) improves BER 7 dB than four receiver antennas (2x4). A 2x2 system with MMSE receiver has BER 6.911904x10-2 at Eb/No=8 dB. At BER=10-3, the use of eight receiver antennas (2x8) improves BER 6.5 dB than four receiver antennas (2x4)./ Permintaan akan komunikasi berbasis nirkabel berkecepatan tinggi serta tahan
terhadap gangguan semakin meningkat. Salah satu metode untuk memenuhi
kebutuhan tersebut adalah penggunaan teknik multiple input multiple output
(MIMO) dan orthogonal frequency division multiplexing (OFDM). Teknik MIMO
menggunakan beberapa antena pengirim maupun penerima sehingga dapat
meningkatkan bitrate maupun BER. Penggunaan OFDM mampu mengatasi efek
multipath.
Pada tugas akhir ini dibuat simulasi sistem MIMO-OFDM dengan dua jenis
penerima yaitu Zero Forcing (ZF) dan Minimum Mean Square Error (MMSE).
Teknik MIMO yang digunakan yaitu Spatial Multiplexing. Simulasi dilakukan
dengan menggunakan Matlab. Channel yang digunakan memiliki 4 multipath tap.
Hasil simulasi sistem MIMO-OFDM ditampilkan dalam bentuk kurva BER
terhadap Eb/No yang digunakan untuk menganalisis kinerja sistem MIMOOFDM. Penambahan jumlah antena pengirim meningkatkan data rate sebesar
faktor jumlah antena pengirim. Penambahan jumlah antena penerima
menghasilkan kurva BER yang lebih baik. Penerima MMSE menghasilkan kurva
BER yang lebih baik daripada ZF. Pada penerima ZF konfigurasi dua antena
pengirim dan dua antena penerima, BER saat Eb/No=8 dB sebesar 1.195055x10-1.
Saat BER=10-3, penggunaan delapan antena penerima (2x8) membuat BER 7 dB
lebih baik daripada sistem dengan empat antena penerima (2x4). Pada penerima
MMSE konfigurasi dua antena pengirim dan dua antena penerima, BER saat
Eb/No=8 dB sebesar 6.911904x10-2. Saat BER=10-3, penggunaan delapan antena
penerima (2x8) membuat BER 6.5 dB lebih baik daripada sistem dengan empat
antena penerima (2x4).
Item Type: | Thesis (Bachelor) |
---|---|
Creators: | Creators NIM Email ORCID Atmodihardjo, Tengku Navanta NIM03220080004 UNSPECIFIED UNSPECIFIED |
Contributors: | Contribution Contributors NIDN/NIDK Email Thesis advisor Martoyo, Ihan NIDN0318057301 UNSPECIFIED Thesis advisor Junita, Handaya NIDN0302068401 UNSPECIFIED |
Additional Information: | SK 32-08 ATM a |
Uncontrolled Keywords: | cyclic prefix; MIMO; multipath; OFDM; spatial multiplexing |
Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
Divisions: | University Subject > Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Electrical Engineering Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Electrical Engineering |
Depositing User: | Users 6 not found. |
Date Deposited: | 16 Jun 2018 12:29 |
Last Modified: | 16 Aug 2021 04:10 |
URI: | http://repository.uph.edu/id/eprint/371 |