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All Journal International Journal of Electrical and Computer Engineering Teknika Setrum : Sistem Kendali-Tenaga-elektronika-telekomunikasi-komputer e-Jurnal Arus Elektro Indonesia Jurnal Keterapian Fisik EMITTER International Journal of Engineering Technology JOURNAL OF APPLIED INFORMATICS AND COMPUTING Jurnal Kebidanan JMM (Jurnal Masyarakat Mandiri) Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Jurnal Kreativitas PKM Jurnal Teknik Elektro Uniba (JTE Uniba) Jurnal Abdi: Media Pengabdian Kepada Masyarakat Budimas : Jurnal Pengabdian Masyarakat Jurnal Nasional Teknik Elektro dan Teknologi Informasi Sewagati Jurnal Rekayasa elektrika Detector: Jurnal Inovasi Riset Ilmu Kesehatan Jurnal Ventilator: Jurnal Riset Ilmu Kesehatan dan Keperawatan Quantum Wellness : Jurnal Ilmu Kesehatan The Indonesian Journal of Computer Science Jurnal Terapi Wicara dan Bahasa Aksi Nyata : Jurnal Pengabdian Sosial dan Kemanusiaan Jurnal Kemitraan Masyarakat
Tri Budi Santoso
Politeknik Elektronika Negeri Surabaya
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Journal : EMITTER International Journal of Engineering Technology

 1 
Analysis of Channel Coding Performance in OFDMTechnique for Underwater Acoustic Communication System Alhamidi, Machmud Roby; Puja Astawa, I Gede; Santoso, Tri Budi
EMITTER International Journal of Engineering Technology Vol 1, No 1 (2013)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

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Abstract

One way to increase the performance of Orthogonal Frequency Division Multiplexing System (OFDM) system is by adding a channel coding (error correction code) in order to detect and correct errors that occur when sending data.At communication of acoustic underwater channel coding is required because of the characteristics of the channel bottom water is much different compared with the air channel and errors are likely to occur.In this research it was made simulation of acoustic underwater communication system with OFDM applied channel codingin which using Hamming code (7,4) and Hamming code (15,11) that is able to correct one error and detect two errors then BCH code capable to correct two errors for BCH (15,7) and correct 9 errors forBCH (127,64) and Reed Solomon code able to correct two errors for RS (15,11) and correct 8 errors for RS (31,15). Results of the study confirm the better performance when system usesOFDM with BCH Code (127.64) than other codes that are used, starting from 1 decibel (dB) to 3 dB for the performance of BER as10 -3 on Additive Gaussian White Noise (AWGN) channel while at the multipath channel, the performance of Bit Error Rate (BER) got better result on 1 dB up to 8 dB for BER performance as10 -3.Keyword: Underwater, Orthogonal Frequency Division Multiplexing (OFDM), channel coding
Performance Evaluation of DCT And Wavelet Coding of Image Transmission By Using of DM Technique Over Topical Shallow-Water Environment Nilasari, Sendi Eka; Puja Astawa, I Gede; Santoso, Tri Budi
EMITTER International Journal of Engineering Technology Vol 1, No 1 (2013)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

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Abstract

Image transmission over under water acoustic channel is one of research trends that were developed to support under ocean environment monitoring. The result of study about the source coding performance for image transmission over underwater acoustic channel over tropical shallow-water environment is presented in this paper. By using the discrete cosine transform (DCT) and wavelet coding, image file was compressed and converted into binary data sequence. Transmission process was conducted with multicarrier OFDM system over under water acoustic channel. An evaluation has been implemented on base band scale by adopting channel model of previous research. With the DCT technique at Eb/No 20 dB was achieved the value of PNSR 12.69 dB, and bit error 0.0025. While by using the wavelet technique, at same Eb/No value, achieved the value of PSNR at 21.38 dB and bit error rate 0.0022. The performance evaluation also conducted visually and showing similar trend as simulation result by using pseudo random data.Keywords: DCT, wavelet, OFDM, underwater acoustic.
Ambient Noise Characterization of Shallow Water Environment Santoso, Tri Budi
EMITTER International Journal of Engineering Technology Vol 3, No 2 (2015)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (365.628 KB)

Abstract

Understanding of environmental characteristic is a key factor in design of communication system. This paper describes an ambient  noise characterization of measurement in the shallow water ofSurabaya bay. The result showed that probability density function (pdf) of ambient noise is close to a Gaussian distribution with the mean of -2.85x10-5 and deviation standard of 9.87x10-4. Validation has been done by using mean square error (MSE) and Bhattacharya distance. Fitting between cdf of measurement result and theory was done by using MSE with the value of and Kolmogorov Smirnov test with the value of 3.9x10-4 and 4.9x10-2 respectively. In the frequency domain analysis, it is showed that in the range of 0 ~ 9 kHz has a deceasing level from -100 until -140 dB. In the frequency of 9 ~ 13.5 kHz, the spectral is flat as like a white. It can be used as a reference in decision of range frequency of underwater acoustic communication systems that will be applied.Keywords: ambient noise, statistical characteristics, underwater acoustic.
Performance Evaluation of DCT And Wavelet Coding of Image Transmission By Using of DM Technique Over Topical Shallow-Water Environment Nilasari, Sendi Eka; Puja Astawa, I Gede; Santoso, Tri Budi
EMITTER International Journal of Engineering Technology Vol 1, No 1 (2013)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24003/emitter.v1i1.3

Abstract

Image transmission over under water acoustic channel is one of research trends that were developed to support under ocean environment monitoring. The result of study about the source coding performance for image transmission over underwater acoustic channel over tropical shallow-water environment is presented in this paper. By using the discrete cosine transform (DCT) and wavelet coding, image file was compressed and converted into binary data sequence. Transmission process was conducted with multicarrier OFDM system over under water acoustic channel. An evaluation has been implemented on base band scale by adopting channel model of previous research. With the DCT technique at Eb/No 20 dB was achieved the value of PNSR 12.69 dB, and bit error 0.0025. While by using the wavelet technique, at same Eb/No value, achieved the value of PSNR at 21.38 dB and bit error rate 0.0022. The performance evaluation also conducted visually and showing similar trend as simulation result by using pseudo random data.Keywords: DCT, wavelet, OFDM, underwater acoustic.
Ambient Noise Characterization of Shallow Water Environment Santoso, Tri Budi
EMITTER International Journal of Engineering Technology Vol 3, No 2 (2015)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (365.628 KB) | DOI: 10.24003/emitter.v3i2.47

Abstract

Understanding of environmental characteristic is a key factor in design of communication system. This paper describes an ambient  noise characterization of measurement in the shallow water ofSurabaya bay. The result showed that probability density function (pdf) of ambient noise is close to a Gaussian distribution with the mean of -2.85x10-5 and deviation standard of 9.87x10-4. Validation has been done by using mean square error (MSE) and Bhattacharya distance. Fitting between cdf of measurement result and theory was done by using MSE with the value of and Kolmogorov Smirnov test with the value of 3.9x10-4 and 4.9x10-2 respectively. In the frequency domain analysis, it is showed that in the range of 0 ~ 9 kHz has a deceasing level from -100 until -140 dB. In the frequency of 9 ~ 13.5 kHz, the spectral is flat as like a white. It can be used as a reference in decision of range frequency of underwater acoustic communication systems that will be applied.Keywords: ambient noise, statistical characteristics, underwater acoustic.
Analysis of Channel Coding Performance in OFDM Technique for Underwater Acoustic Communication System Alhamidi, Machmud Roby; Puja Astawa, I Gede; Santoso, Tri Budi
EMITTER International Journal of Engineering Technology Vol 1, No 1 (2013)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24003/emitter.v1i1.5

Abstract

One way to increase the performance of Orthogonal Frequency Division Multiplexing System (OFDM) system is by adding a channel coding (error correction code) in order to detect and correct errors that occur when sending data.At communication of acoustic underwater channel coding is required because of the characteristics of the channel bottom water is much different compared with the air channel and errors are likely to occur.In this research it was made simulation of acoustic underwater communication system with OFDM applied channel codingin which using Hamming code (7,4) and Hamming code (15,11) that is able to correct one error and detect two errors then BCH code capable to correct two errors for BCH (15,7) and correct 9 errors forBCH (127,64) and Reed Solomon code able to correct two errors for RS (15,11) and correct 8 errors for RS (31,15). Results of the study confirm the better performance when system usesOFDM with BCH Code (127.64) than other codes that are used, starting from 1 decibel (dB) to 3 dB for the performance of BER as10 -3 on Additive Gaussian White Noise (AWGN) channel while at the multipath channel, the performance of Bit Error Rate (BER) got better result on 1 dB up to 8 dB for BER performance as10 -3.Keyword: Underwater, Orthogonal Frequency Division Multiplexing (OFDM), channel coding
Underwater Acoustic Channel Characterization of Shallow Water Environment Santoso, Tri Budi; Widjiati, Endang; Wirawan, Wirawan; Hendrantoro, Gamantyo
EMITTER International Journal of Engineering Technology Vol 6, No 1 (2018)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24003/emitter.v6i1.243

Abstract

Understanding of channel propagation characteristics is a key to the optimal design of underwater acoustic communication. Generally, modelling of underwater acoustic channel is performed based on measurement result in certain site at certain times. Different sites might have different characteristics, each of which can generally be described by a model obtained by averaging measurement results at multiple points in the same environment. This paper describes a characterization of the underwater acoustic channel of tropical shallow water in a Mangrove estuary, which has sediment up to 60 cm at the bottom. Such a channel model is beneficial for the design of communication system in an autonomous underwater vehicle, for instance. The measurement result of delay spread parameter from three different points with the distance of 14 ~ 52 m, has various values. The root mean square (RMS) of delay spread ranges between 0.0621 ~ 0.264 ms, and the maximum delay spread varies with the value of 0.187 ~ 1.0 ms. The pdf fitting shows that Rayleigh distribution describes the fading variation more accurately than Nakagami and Ricean.
Co-Authors Achmad Basuki Achmad, Fariz Afifah, Izza Nur Agil Almas Agus Indra Gunawan Ahmad Baihaqi Adi Putro Ahmad Izzudin Aji, Rendra Suprobo Amang Sudarsono, Amang Andang Sudarmono Anggraeni, Martianda Erste Anggraini , Martianda Erste Anisa Rizki Julfatwiah Anteti Andinafar Ari Wijayanti Ari Wijayanti Aries Pratiarso Ashafidz Fauzan Dianta, Ashafidz Fauzan Ashafidz Fauzan, Ashafidz Budi Aswoyo, Budi Cahyanto, Erindra Budi Cemy Nur Fitria Darmawan, Zakha Maisat Eka Dewi, Florista Dinda Ayu Oktaviasari Dwi Handoyo Dwi Susanto Endang Widjiati Faradisa, Rosiyah Faridatun Nadziroh Fathoni, Kholid Fatoni Hutagalung Fitriana, Azizah Nur Fitriana, Fia Florista Dewi Gamantyo Hendrantoro Hari Wahjuningrat Suparno Harumi, Linda Hary Octavianto I Gede Puja Astawa I Gede Puja Astawa I Gede Puja Astawa, I Gede Ika Subekti Wulandari, Ika Subekti Izza Nur Afifah Kanthi Suratih Karimatun Nisa Karimatun Nisa’ Kristyawati, Dian Kurniajaya, Moga M. Hafiduddin Machmud Roby Alhamidi, Machmud Roby Mardawia M Panrereng Megasari, Anis Laela Miftachul Huda Miftahul Huda Mike Yuliana Moga Kurniajaya Moh. Zikky, Moh. Mohamad Ridwan Mohamad Ridwan Mr. Arifin Muhammad Edy Hidayat Muhammad Hafiduddin Muhammad Kholid Saifulloh Mujahidatul Musfiroh Nadziroh, Faridatun Nailul Muna NIHAYATUS SAADAH Nur Adi Siswandari Okkie Puspitorini Okkie Puspitorini, Okkie Paramita Eka Wahyu Lestari Prihantono, Prihantono Prima Kristalina Rahmaningrum, Ainulia Salsabila Raihan, Dafa Ramadhani, Aura Kamilla Rante, Hestiasari Rena Widyaningtyas Reni Soelistijorini Rini Satiti Sa'adah, Nihayatus Salwadilla, Ika Shafira Sendi Eka Nilasari, Sendi Eka Setyani, Rizka Ayu Soelistijorini, Reni Sri Mulyani Sultan Syahputra Yulianto Supriyatno, Abigael Thea Rahmany Susilowati, Amanda Bintang Thariqo Falsafah Titon Dutono Tri Winarno Umi Fitria P Wahyu, Gilang Arya Widi Sarinastiti Wirawan Wirawan Yoedy Moegiharto Yudha, Kurniawan Try Zainuddin, Muhammad Agus Zikky, Moh