International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Since Year 2012 | Open Access | Fully Refereed | Peer Reviewed

ISSN: 2319-7064




Downloads: 129

Research Paper | Aerospace Engineering | Sudan | Volume 5 Issue 6, June 2016


Performance Analysis of QoS Parameters for WiMAX Network

Rasha Ali Mohammed Ahmed [2] | Dr. Haala El Dawoo [2]


Abstract: The IEEE 802.16 standard is a promising tech-nology for 4G mobile networks. Though supporting versatile service classes, best effort (BE) service class is expected to dominate WiMAX networks, due to operational simplicity. One of bandwidth request mechanisms that subscriber stations (SS) can utilize to issue bandwidth requests (BW-REQ) for BE connections is contention-based random access. An SS starts a timer T16 when transmitting a BW-REQ. If getting a grant before timer expiration, the SS transmits data packets at the allocated time slots, otherwise it performs truncated binary exponential backoff process for BW-REQ retransmission. The default value of T16 is one frame time. However, T16 impacts on contention and request collision significantly. In the paper, we develop an analytical model for T16 timer setting. Besides, we derive analytical expressions for the average number of tries per BW-REQ and the average packet delay. We compare the theoretical results of fixed and adjustable timers. The results show that adjusting timer reduces both the number of collision and the average packet delay


Keywords: WiMAX, Ber, delay, TCP/IP, Fixed


Edition: Volume 5 Issue 6, June 2016,


Pages: 512 - 521


How to Cite this Article?

Rasha Ali Mohammed Ahmed, Dr. Haala El Dawoo, "Performance Analysis of QoS Parameters for WiMAX Network", International Journal of Science and Research (IJSR), Volume 5 Issue 6, June 2016, pp. 512-521, https://www.ijsr.net/get_abstract.php?paper_id=NOV164379

How to Share this Article?

Enter Your Email Address




Similar Articles with Keyword 'WiMAX'

Downloads: 107

Research Paper, Aerospace Engineering, Sudan, Volume 5 Issue 6, June 2016

Pages: 1351 - 1354

Handover Performance in Mobile WIMAX Networks

Zobida Abbass | Dr. Mohmmed Abakar [4]

Share this Article

Downloads: 108

Research Paper, Aerospace Engineering, Sudan, Volume 5 Issue 8, August 2016

Pages: 1943 - 1945

Performance Evaluation of G.711 VIOP Coder Using Wired and Wireless Communication Network

Wefag Salaheldin Abdelrazig [2] | Dr. Haala El Dawo [6]

Share this Article


Top