Performance Analysis of an OFDM PHY Scheme with Zero Forcing Equalizer Using Software Defined Radio Platform and USRP

We present an implementation of Zero Forcing (ZF) equalizer in OFDM scheme using Software Defined Radio platform whereas NI USRP-2920 as the Radio Frequency (RF) front-end. ZF equalizer is employed to achieve reliable system at the receiver. Center frequency used for data transmission is 915 MHz. Th...

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Main Authors: Ahmad Zainudin, Amang Sudarsono, I Gede Puja Astawa
Format: Article
Language:English
Published: Politeknik Elektronika Negeri Surabaya 2014-06-01
Series:Emitter: International Journal of Engineering Technology
Online Access:http://emitter.pens.ac.id/index.php/emitter/article/view/15
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author Ahmad Zainudin
Amang Sudarsono
I Gede Puja Astawa
author_facet Ahmad Zainudin
Amang Sudarsono
I Gede Puja Astawa
author_sort Ahmad Zainudin
collection DOAJ
description We present an implementation of Zero Forcing (ZF) equalizer in OFDM scheme using Software Defined Radio platform whereas NI USRP-2920 as the Radio Frequency (RF) front-end. ZF equalizer is employed to achieve reliable system at the receiver. Center frequency used for data transmission is 915 MHz. The reliability transmission and the performance of ZF equalizer are measured in term of different symbol mapping (i.e., M-PSK and M-QAM). The IQ rate determines the bandwidth available, whereas good performance is achieved with IQ rate less than 1 MHz.ZF equalizer achieves good performance when using BPSK, QPSK and 16-QAM modulation techniques. By applying ZF equalizer, bit error on BPSK and QPSK modulations can be reduced from 29,16% and 39,06% into 0%. This advantage of ZF equalizer also is able to press the bit error on 16- QAM and 64-QAM modulations into 3,125% and 8,85%, respectively. Keywords: OFDM,SDR, USRP,Zero Forcing Equalizer
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spelling doaj.art-ef8df0882da94262a654468b7baf43422022-12-21T19:08:43ZengPoliteknik Elektronika Negeri SurabayaEmitter: International Journal of Engineering Technology2355-391X2443-11682014-06-012115Performance Analysis of an OFDM PHY Scheme with Zero Forcing Equalizer Using Software Defined Radio Platform and USRPAhmad Zainudin0Amang Sudarsono1I Gede Puja Astawa2Electronic Engineering Polytechnic Institute of SurabayaElectronic Engineering Polytechnic Institute of SurabayaElectronic Engineering Polytechnic Institute of SurabayaWe present an implementation of Zero Forcing (ZF) equalizer in OFDM scheme using Software Defined Radio platform whereas NI USRP-2920 as the Radio Frequency (RF) front-end. ZF equalizer is employed to achieve reliable system at the receiver. Center frequency used for data transmission is 915 MHz. The reliability transmission and the performance of ZF equalizer are measured in term of different symbol mapping (i.e., M-PSK and M-QAM). The IQ rate determines the bandwidth available, whereas good performance is achieved with IQ rate less than 1 MHz.ZF equalizer achieves good performance when using BPSK, QPSK and 16-QAM modulation techniques. By applying ZF equalizer, bit error on BPSK and QPSK modulations can be reduced from 29,16% and 39,06% into 0%. This advantage of ZF equalizer also is able to press the bit error on 16- QAM and 64-QAM modulations into 3,125% and 8,85%, respectively. Keywords: OFDM,SDR, USRP,Zero Forcing Equalizerhttp://emitter.pens.ac.id/index.php/emitter/article/view/15
spellingShingle Ahmad Zainudin
Amang Sudarsono
I Gede Puja Astawa
Performance Analysis of an OFDM PHY Scheme with Zero Forcing Equalizer Using Software Defined Radio Platform and USRP
Emitter: International Journal of Engineering Technology
title Performance Analysis of an OFDM PHY Scheme with Zero Forcing Equalizer Using Software Defined Radio Platform and USRP
title_full Performance Analysis of an OFDM PHY Scheme with Zero Forcing Equalizer Using Software Defined Radio Platform and USRP
title_fullStr Performance Analysis of an OFDM PHY Scheme with Zero Forcing Equalizer Using Software Defined Radio Platform and USRP
title_full_unstemmed Performance Analysis of an OFDM PHY Scheme with Zero Forcing Equalizer Using Software Defined Radio Platform and USRP
title_short Performance Analysis of an OFDM PHY Scheme with Zero Forcing Equalizer Using Software Defined Radio Platform and USRP
title_sort performance analysis of an ofdm phy scheme with zero forcing equalizer using software defined radio platform and usrp
url http://emitter.pens.ac.id/index.php/emitter/article/view/15
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AT igedepujaastawa performanceanalysisofanofdmphyschemewithzeroforcingequalizerusingsoftwaredefinedradioplatformandusrp