Desain Protokol Jaringan untuk Komunikasi Multimedia melalui WiMAX

Suherman Suherman

Abstract


Tulisan ini membahas protokol jaringan pada lapisan transport serta perubahan desain yang ada untuk meningkatkan kualitas transmisi multimedia melalui perangkat orthogonal frequency division multiplexing (OFDM). Kualitas transmisi video melalui udara sangat rentan terhadap error transmisi, yang menyebabkan terjadinya packet loss. Penggunaan protokol reliable seperti transmission control protocol (TCP) mampu mengurangi loss, tetapi meningkatkan delay yang signifikan. Oleh karenanya dibutuhkan protokol yang dapat mengurangi loss tanpa menambah delay. Artikel ini mengajukan perubahan desain pada protokol jaringan unreliable UDP melalui mekanisme retransmisi dan cross-layer. Melalui simulasi, metode yang diajukan terbukti mampu mengurangi packet loss UDP sebesar rata-rata 6,5 %, menekan delay UDP hingga 18-37% serta meningkatkan kualitas video yang diterima berkisar 21,3-184,3%.

Keywords


Protokol unreliable, retransmisi, cross-layer, OFDM

Full Text:

PDF

References


Ali I., Al-Majeed S., Fleury M., Ghanbari M. (2011). Semi-reliable transport protocol for IPTV over mobile WiMAX. In Proc. of the IEEE International Conference on Computer as a Tool, 1-4.

Bova T. and Krivoruchka T. (1999). Reliable UDP protocol. IETF draft, Network Working Group.

Gu Y. H. and Grossman R. L. (2007). UDT: UDP-based data transfer for high-speed wide area networks, Elsevier Journal of Computer Networks, 51(7), 1777-1799.

He E., Leigh J., Yu O., Defanti T. A. (2002). Reliable Blast UDP: predictable high performance bulk data transfer. In Proc. of the IEEE International Conference on Cluster Computing, p.317.

IEEE (2004). Local and Metropolitan Area Networks, Part 16: Air Interface for Fixed Broadband Wireless Access Systems. Std. 802.16-2004.

IEEE (2005). Local and Metropolitan Area Networks, Part 16: Air Interface for Fixed and Mobile Broadband Wireless Access Systems. Std. 802.16e-2005.

IEEE (2011). IEEE Standard for Local and metropolitan area networks Part 16: Air Interface for Broadband Wireless Access Systems Amendment 3: Advanced Air Interface. Std 802.16m-2011(Amendment to IEEE Std 802.16-2009).

Ke C.-H., Shieh C.-K., Hwang W.-S., Ziviani A. (2008). An Evaluation Framework for More Realistic Simulations of MPEG Video Transmission. Journal of Information Science and Engineering, 24(2), 425-440.

Klaue J., Rathke B., Wolisz A. (2003). EvalVid, - A Framework for Video Transmission and Quality Evaluation. In Proc. of the Int. Conf. Modelling Techniques and Tools for Computer Performance Evaluation, pp. 255-272.

Kohler E., Handley M., Floyd S., Padhye J. (2006). Datagram congestion control protocol (DCCP). Request for Comment (RFC) 4340, IETF.

Larzon L.A., Degermark M., Pink S. (1999). UDP Lite for real-time multimedia applications, in Proc. of the IEEE International Conference of Communications.

Le T., Kuthethoor G., Hansupichon C., Sesha P., Strohm J., Hadynski G., Kiwior D., Parker D. (2009). Reliable User Datagram Protocol for airborne network. In Proc. of the IEEE conference on military communications, pp. 1-6.

National Institute of Standards and Technology. (2007). The Network Simulator ns-2 add-on, IEEE 802.16 model (MAC+PHY), (June).

Ni Q., Hu L., Vinel A., Xiao Y., Hadjinicolaou M. (2010). Performance Analysis of Contention Based Bandwidth Request Mechanisms in WiMAX Networks. IEEE Systems Journal,.4(4), 477-486.

Postel J. (1980). User datagram protocol, Request for Comments, RFC 768. ISI.

Suherman; Al-Akaidi, M. (2011). Improving real time video surveillance performance using inter-frame retransmission. In Proc. 4th International Conference on Imaging for Crime Detection and Prevention 2011 (ICDP 2011), pp.1-5.

Test Media. (2010). Retrieved on October 2010 from: http://media.xiph.org

The Network Simulator. (2010). Retrieved on October 2010 from: www.isi.edu/nsnam/ns/.

Welzl M. (2005). Passing corrupt data across network layers: an overview of recent developments and issues. EURASIP Journal on Applied Signal Processing, January, 242-247.

Zheng H. and Boyce J. (2001). An Improved UDP Protocol for Video Transmission over Internet-to-Wireless Networks. IEEE Trans. on Multimedia, 3(3), 356-365.




DOI: http://dx.doi.org/10.36055/setrum.v3i2.501

Refbacks

  • There are currently no refbacks.