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All Journal EMITTER International Journal of Engineering Technology Indonesia Performance Journal Open Access Indonesia Journal of Social Sciences Open Access Indonesia Journal of Social Sciences
Heru Iswanto, Heru
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Humanities Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences Other

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Traffic Analysis of Quality of Service (QoS) for Video Conferencing between Main Campus and Sub Campus in Laboratory Scale Sudarsono, Amang; Siswanto, Anang; Iswanto, Heru; Setiawan, Qoirul
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 (6439.001 KB)

Abstract

Recently, in the distance learning system, video conferencing becomes one of expected course material delivery systems for creating a virtual class such that lecturer and student which are separated at long distance can engage a learning activity as well as face to face learning system. For this reason, the service availability and quality should be able to guaranteed and fulfilled. In this research, we analyze QoS of video conferencing between main campus and sub campus as the implementation of distance learning system in laboratory scale. Our experimental results show that the channel capacity or bandwidth of WAN connection between main campus and sub campus at 128 kbps is able to generate the throughput of video transmission and reception at 281 kbps and 24 kbps, respectively. Meanwhile, throughput of audio transmission and reception is 64 kbps and 26 kbps with the number of total packet loss for video and audio transmission is 84.3% and 29.2%, respectively. In this setting, the total jitter for video and audio transmission is 125 ms and 21 ms, respectively. In this case, there is no packet loss for traffic transmitting and receiving with jitter is not more than 5 ms. We also implemented QoS using Trust CoS model dan Trust DSCP for improving the quality of service in term of jitter up to 12.3% and 22.41%, respectively.Keywords: quality of service, throughput, delay, jitter, packet loss, Trust CoS, Trust DSCP
Traffic Analysis of Quality of Service (QoS) for Video Conferencing between Main Campus and Sub Campus in Laboratory Scale Sudarsono, Amang; Siswanto, Anang; Iswanto, Heru; Setiawan, Qoirul
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 (6439.001 KB) | DOI: 10.24003/emitter.v3i2.41

Abstract

Recently, in the distance learning system, video conferencing becomes one of expected course material delivery systems for creating a virtual class such that lecturer and student which are separated at long distance can engage a learning activity as well as face to face learning system. For this reason, the service availability and quality should be able to guaranteed and fulfilled. In this research, we analyze QoS of video conferencing between main campus and sub campus as the implementation of distance learning system in laboratory scale. Our experimental results show that the channel capacity or bandwidth of WAN connection between main campus and sub campus at 128 kbps is able to generate the throughput of video transmission and reception at 281 kbps and 24 kbps, respectively. Meanwhile, throughput of audio transmission and reception is 64 kbps and 26 kbps with the number of total packet loss for video and audio transmission is 84.3% and 29.2%, respectively. In this setting, the total jitter for video and audio transmission is 125 ms and 21 ms, respectively. In this case, there is no packet loss for traffic transmitting and receiving with jitter is not more than 5 ms. We also implemented QoS using Trust CoS model dan Trust DSCP for improving the quality of service in term of jitter up to 12.3% and 22.41%, respectively.Keywords: quality of service, throughput, delay, jitter, packet loss, Trust CoS, Trust DSCP
Survei Ketersediaan dan Kelayakan Sarana Prasarana Senam Artistik di Persani Kota Malang Iswanto, Heru; Adi, Sapto
Performance Vol 2, No 1 (2018)
Publisher : Fakultas Ilmu Keolahragaan Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (360.785 KB)

Abstract

The Effect of Design, Brand Image and Personal Selling on Costumer’s Loyalty through Customer’s Satisfaction: A Study on Darbost T-Shirt’s Customers in Jakarta I Made Adnyana; Iswanto, Heru
Open Access Indonesia Journal of Social Sciences Vol. 4 No. 1 (2021): Open Access Indonesia Journal of Social Sciences
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37275/oaijss.v4i1.37

Abstract

The purpose of this research is to study the effect of product design, brand image, and personal selling on customer loyalty through customer satisfaction studies on consumers of darbost t-shirts in Jakarta and to provide suggestions on how PT. Darbost Garment Industri can increase customer satisfaction by increasing the aspects that influence it. For the independent variables: product design (X1), brand image (X2), personal selling (X3), the dependent variable is customer loyalty (Y) and the intervening variable is customer satisfaction (Z). This research approach is quantitative research according to the questionnaire. The sample used was 150 respondents. The results of this study indicate that each of the dimensions of product design, brand image and personal selling directly has a positive and significant effect on customer satisfaction. Customer satisfaction directly has a positive and significant effect on customer loyalty. And from each dimension of product design, brand image and personal selling indirectly affect customer loyalty through customer satisfaction.
The Effect of Design, Brand Image and Personal Selling on Costumer’s Loyalty through Customer’s Satisfaction: A Study on Darbost T-Shirt’s Customers in Jakarta I Made Adnyana; Iswanto, Heru
Open Access Indonesia Journal of Social Sciences Vol. 4 No. 1 (2021): Open Access Indonesia Journal of Social Sciences
Publisher : HM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (655.002 KB) | DOI: 10.37275/oaijss.v4i1.37

Abstract

The purpose of this research is to study the effect of product design, brand image, and personal selling on customer loyalty through customer satisfaction studies on consumers of darbost t-shirts in Jakarta and to provide suggestions on how PT. Darbost Garment Industri can increase customer satisfaction by increasing the aspects that influence it. For the independent variables: product design (X1), brand image (X2), personal selling (X3), the dependent variable is customer loyalty (Y) and the intervening variable is customer satisfaction (Z). This research approach is quantitative research according to the questionnaire. The sample used was 150 respondents. The results of this study indicate that each of the dimensions of product design, brand image and personal selling directly has a positive and significant effect on customer satisfaction. Customer satisfaction directly has a positive and significant effect on customer loyalty. And from each dimension of product design, brand image and personal selling indirectly affect customer loyalty through customer satisfaction.
Co-Authors Amang Sudarsono, Amang Anang Siswanto, Anang I Made Adnyana Qoirul Setiawan, Qoirul Singgih Saptadi