Wireless tcp link state monitoring based video content adaptation and data delivery. ... Hell of a Handshake: Abusing TCP for Reflective Amplification DDoS.
Presentation of Transmission Control Protocol Delay Reduction in WiMAX Suherman Universitas Sumatera Utara
Introduction • Transmission Control Protocol (TCP)
Introduction • Transmission Control Protocol (TCP) Improvement: - Window arrangements (TCP Variants) - Flow control - Multi connections - Wireless environment - Partial checksum - Etch
Proposed • Fasten TCP acknowledgment
Previous works • Sorting the ACK route
• IFS reduction in 802.11
This works • Sorting the ACK route
Evaluation • Simulator set up
SS with ACK packet has higher priority
1 Prioritize SS with ACK packet
2
Results • Overall Delay 30
Overall Delay (s)
25 20 15
No Prioritas priorityACK tanpa
10
Prioritized ACK dengan Prioritas ACK
5 0 574690.97
595531.1
615541.81
663355.18
751455.52
Bit Rate (bps)
823555.85
1019654.85
2
Results • Other parameters Parameters
Before
After
Packet Delay
167.58 ms
166.69 ms
Jitter
35.91 ms
32.75 ms
Packet loss
1.09%
0.95%
Overall delay
19.06 s
18.30 s
2
Conclusion By prioritizing ACK packet on WiMAX link, data sent by using TCP experiences 0.66% packet delay reduction; 8.61% jitter decrement; 0.14% lower packet losses and 3.82% quicker transmission.
References • • • • • • • • • • • •
Abdurrahman, H., Sitompul, O. S., & Mubarakah, N. (2017). UDP-Lite Enhancement Through Checksum Protection. IOP Conference Series: Materials Science and Engineering, 180(1), 12146. Abolfazli, E., & Shah-Mansouri, V. (2016). Dynamic adjustment of queue levels in TCP Vegas-based networks. Electronics Letters, 52(5), 361–363. Davidson, J. (2012). An introduction to TCP/IP. Springer Science & Business Media. Dixit, S. (2016). Wireless tcp link state monitoring based video content adaptation and data delivery. U.S. Patent Application, No. 15/186. Fielding, R., & Reschke, J. (n.d.). Hypertext transfer protocol (HTTP/1.1): Message syntax and routing. Kührer, M., Hupperich, T., Rossow, C., & Holz, T. (2014). Hell of a Handshake: Abusing TCP for Reflective Amplification DDoS Attacks. WOOT. Lundin, E. G. (2017). Adaptive relative bitrate manager for TCP depending flow control. Washington, DC: U.S. Patent and Trademark Office. Marwan Al-Akaidi, S. (2015). A transport layer protocol for uplink WiMAX video streaming. International Journal of Multimedia and Ubiquittous Engineering, 10(1), 19–32. Peng, Q., Walid, A., Hwang, J., & Low, S. H. (2016). Multipath TCP: Analysis, design, and implementation. IEEE/ACM Transactions on Networking, 24(1), 596–609. Sjani, M., & Andriani, E. (2016). Reducing multimedia transmission delay by shortening TCP acknowledgement route. Technology of Information and Communication (ISemantic), International Seminar on Application for (Pp. 114-117). IEEE. Suherman. (2018). Reducing Transmission Control Protocol Delay in 802.11 Network by Prioritizing the Acknowledgement Packets. In The 6th International Conference on Information Technology for Cyber and IT Service Management (CITSM ). Suherman, S., & Al-Akaidi, M. (2013). Increasing uplink broadband video streaming protocol performance in WiMAX network. International Journal of Internet Protocol Technology, 7(3), 176–185.
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