Radio astronomy interferometer network testing for a Malaysia-China real-time e-VLBI
The uv-coverage of the current VLBI network between Australia northern Asia will be significantly enhanced with an existence of a middle baseline VLBI station located in Malaysia. This paper investigated the connecting route of the first half of the Asia-Oceania VLBI network i.e. from Malaysia to Ch...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer Verlag
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/73703/ http://psasir.upm.edu.my/id/eprint/73703/1/Radio%20astronomy%20interferometer%20network%20testing%20for%20a%20Malaysia%E2%80%93China%20real-time%20e-VLBI.pdf |
| _version_ | 1848857341281173504 |
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| author | Zainal Abidin, Zamri Hashim, Shaiful Jahari Lim, Yang Wei Chen, Zhong Rosli, Zulfazli |
| author_facet | Zainal Abidin, Zamri Hashim, Shaiful Jahari Lim, Yang Wei Chen, Zhong Rosli, Zulfazli |
| author_sort | Zainal Abidin, Zamri |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The uv-coverage of the current VLBI network between Australia northern Asia will be significantly enhanced with an existence of a middle baseline VLBI station located in Malaysia. This paper investigated the connecting route of the first half of the Asia-Oceania VLBI network i.e. from Malaysia to China. The investigation of transmission network characteristics between Malaysia and China was carried out in order to perform a real-time and reliable data transfer within the e-VLBI network for future eVLBI observations. MyREN (Malaysia) and CSTNET (China) high-speed research networks were utilized for this proposed e-VLBI connection. Preliminary network test was performed by ping, traceroute, and iperf prior to data transfer tests, which were evaluated with three types of protocols namely FTP, Tsunami-UDT and UDT. The results showed that, on average, there were eighteen hops between Malaysia and China networks with 98 ms round trip time (RTT) delay. Overall UDP protocol has a better throughput compared to TCP protocol. UDP can reach a maximum rate of 90 Mbps with 0% packet loss. In this feasibility test, the VLBI test data was successfully transferred between Malaysia and China by utilizing the three types of data transfer protocols. |
| first_indexed | 2025-11-15T11:56:01Z |
| format | Article |
| id | upm-73703 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T11:56:01Z |
| publishDate | 2018 |
| publisher | Springer Verlag |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-737032020-05-12T15:58:46Z http://psasir.upm.edu.my/id/eprint/73703/ Radio astronomy interferometer network testing for a Malaysia-China real-time e-VLBI Zainal Abidin, Zamri Hashim, Shaiful Jahari Lim, Yang Wei Chen, Zhong Rosli, Zulfazli The uv-coverage of the current VLBI network between Australia northern Asia will be significantly enhanced with an existence of a middle baseline VLBI station located in Malaysia. This paper investigated the connecting route of the first half of the Asia-Oceania VLBI network i.e. from Malaysia to China. The investigation of transmission network characteristics between Malaysia and China was carried out in order to perform a real-time and reliable data transfer within the e-VLBI network for future eVLBI observations. MyREN (Malaysia) and CSTNET (China) high-speed research networks were utilized for this proposed e-VLBI connection. Preliminary network test was performed by ping, traceroute, and iperf prior to data transfer tests, which were evaluated with three types of protocols namely FTP, Tsunami-UDT and UDT. The results showed that, on average, there were eighteen hops between Malaysia and China networks with 98 ms round trip time (RTT) delay. Overall UDP protocol has a better throughput compared to TCP protocol. UDP can reach a maximum rate of 90 Mbps with 0% packet loss. In this feasibility test, the VLBI test data was successfully transferred between Malaysia and China by utilizing the three types of data transfer protocols. Springer Verlag 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/73703/1/Radio%20astronomy%20interferometer%20network%20testing%20for%20a%20Malaysia%E2%80%93China%20real-time%20e-VLBI.pdf Zainal Abidin, Zamri and Hashim, Shaiful Jahari and Lim, Yang Wei and Chen, Zhong and Rosli, Zulfazli (2018) Radio astronomy interferometer network testing for a Malaysia-China real-time e-VLBI. Indian Journal of Physics, 92 (1). 1-Jun. ISSN 0019-5480; ESSN: 0974-9845 https://link.springer.com/article/10.1007/s12648-017-1080-5 10.1007/s12648-017-1080-5 |
| spellingShingle | Zainal Abidin, Zamri Hashim, Shaiful Jahari Lim, Yang Wei Chen, Zhong Rosli, Zulfazli Radio astronomy interferometer network testing for a Malaysia-China real-time e-VLBI |
| title | Radio astronomy interferometer network testing for a Malaysia-China real-time e-VLBI |
| title_full | Radio astronomy interferometer network testing for a Malaysia-China real-time e-VLBI |
| title_fullStr | Radio astronomy interferometer network testing for a Malaysia-China real-time e-VLBI |
| title_full_unstemmed | Radio astronomy interferometer network testing for a Malaysia-China real-time e-VLBI |
| title_short | Radio astronomy interferometer network testing for a Malaysia-China real-time e-VLBI |
| title_sort | radio astronomy interferometer network testing for a malaysia-china real-time e-vlbi |
| url | http://psasir.upm.edu.my/id/eprint/73703/ http://psasir.upm.edu.my/id/eprint/73703/ http://psasir.upm.edu.my/id/eprint/73703/ http://psasir.upm.edu.my/id/eprint/73703/1/Radio%20astronomy%20interferometer%20network%20testing%20for%20a%20Malaysia%E2%80%93China%20real-time%20e-VLBI.pdf |