ارائه یک الگوریتم کنترل پذیرش تماس در کارگزار SIP جهت ارتقای کیفیت سرویس ترافیک صوتی در شبکه های بی سیم 802.11n

نوع مقاله: مقاله پژوهشی فارسی

نویسندگان

1 گروه مهندسی کامپیوتر، دانشکده مهندسی، دانشگاه بوعلی سینا، همدان، ایران.

2 گروه کامپیوتر، دانشکده مهندسی، دانشگاه بوعلی سینا، همدان، ایران.

چکیده

انتقال صدا روی شبکه‌های بی‌سیم، یک فناوری پرکاربرد و مقرون‌به‌صرفه است که سرویس مکالمه‌ی صوتی را روی شبکه‌های پهنای باند، طبق استاندارد 802.11 میسر می‌سازد. در این سرویس، پروتکل SIP، مسئول برقراری نشست‌ها می‌باشد. تحقیقات اخیر نشان می‌دهد که الگوریتم کنترل تماسی که نشست‌های SIP را کنترل می‌نماید، می‌تواند پارامترهای کیفیت رسانه را در ارسال داده‌های صوتی تضمین کند.الگوریتم‌های متفاوتی برای تصمیم‌گیری پذیرش تماس در نقطه دسترسی ارائه‌شده‌اند؛ اما به دلیل تغییر در پارامترهای زیر لایه‌ی دسترسی و یا پیچیدگی بالا در تضمین کیفیت سرویس مناسب نیستند. بنابراین، در این مقاله، الگوریتم جدیدی ارائه می‌کنیم که در کارگزار SIP، درزمانی بسیار کوتاه، در موردپذیرش و یا رد تماس جدید تصمیم‌گیری می‌کند. الگوریتم پیشنهادی، شرایط پویای شبکه همچون نرخ اشغال کانال و درصد ترافیک بلادرنگ موجود در کانال را در نظر گرفته و تغییری در پارامترهای زیر لایه‌ی MAC ایجاد نمی‌کند. تست روش پیشنهادی روی بستر واقعی مؤید برتری آن نسبت به روش‌های اخیر مشابه و همچنین حالت پایه، در تضمین سطح مطلوب کیفیت سرویس در قالب پارامترهایی چون مدت‌زمان پاسخ به تماس‌ها، طول تماس‌ها، نرخ اتلاف و تأخیر بسته‌های بلادرنگ است.

کلیدواژه‌ها


S. A. A. Alshakhsi and H. Hasbullah, "Improving QoS of VoWLAN via cross-layer interaction approach," in Information Technology (ITSim), 2010 International Symposium in, 2010, vol. 2: IEEE, pp. 678-682.
J.-J. Chen, L. Lee, and Y.-C. Tseng, "Integrating SIP and IEEE 802.11 e to support handoff and multi-grade QoS for VoIP-over-WLAN applications," Computer Networks, vol. 55, no. 8, pp. 1719-1734, 2011.
L. Cai, Y. Xiao, and J. W Mark, "VoIP over WLAN: Voice capacity, admission control, QoS, and MAC," International Journal of Communication Systems, vol. 19, no. 4, pp. 491-508, 2006.
P.-Y. Wu, J. Chen, Y.-C. Tseng, and H.-W. Lee, "Design of QoS and admission control for VoIP services over IEEE 802.11 e WLANs," Journal of information science and engineering, vol. 24, no. 4, pp. 1003-1022, 2008.
M. H. Seyed Vahid Azhari , Hani Nemati, Javad Enayatizadeh, Ahmad Akbari, "Overload control in SIP networks using no explicit feedback: A window based approach," Computer Communications, vol. 35, no. 12, pp. 1472-1483, 2012.
C. V. N. Index, "Cisco visual networking index: Forecast and methodology, 2010-2015," White Paper, CISCO Systems Inc, vol. 9, 2011.
S. Saleh, Z. Shah, and A. Baig, "Improving QoS of IPTV and VoIP over IEEE 802.11 n," Computers & Electrical Engineering, vol. 43, pp. 92-111, 2015.
M. N. Ismail, "Analysis of Secure Real Time Transport Protocol on VoIP over Wireless LAN in Campus Environment," International Journal on Computer Science and Engineering (IJCSE), vol. 2, no. 02, pp. 898-902, 2010.
M. K. Ranganathan and L. Kilmartin, "Performance analysis of secure session initiation protocol based VoIP networks," Computer Communications, vol. 26, no. 6, pp. 552-565, 2003.
K. Nisar, A. M. Said, and H. Hasbullah, "A Voice Priority Queue(VPQ) Fair Scheduler for the VoIP over WLANs," International Journal on Computer Science and Engineering, vol. 3, no. 2, pp. 506-518, 2011.
L. Chaffin, Building a VoIP Network with Nortel's Multimedia Communication Server 5100. Syngress, 2006.
J. Glasmann, W. Kellerer, and H. Muller, "Service architectures in H. 323 and SIP: A comparison," IEEE Communications Surveys & Tutorials, vol. 5, no. 2, 2003.
 I. Basicevic, M. Popovic, and D. Kukolj, "Comparison of SIP and H. 323 Protocols," in Digital Telecommunications, 2008. ICDT'08. The Third International Conference on, 2008: IEEE, pp. 162-167.
 J. Glasmann, W. Kellerer, and H. Muller, "Service Development and Deployment in H. 323 and SIP," in Computers and Communications, 2001. Proceedings. Sixth IEEE Symposium on, 2001: IEEE, pp. 378-385.
B. Goode, "Voice over internet protocol (VoIP)," Proceedings of the IEEE, vol. 90, no. 9, pp. 1495-1517, 2002.
 Y.-C. Jung, B.-K. Kim, and Y.-T. Kim, "Home/office intranet resource management for QoS-guaranteed realtime stream service provisioning on IEEE 802.11 e WLAN," in Network Operations and Management Symposium, 2008. NOMS 2008. IEEE, 2008: IEEE, pp. 959-962.
J. Rosenberg et al., "SIP: session initiation protocol," 2070-1721, 2002.
E.-J. Yoon, K.-Y. Yoo, C. Kim, Y.-S. Hong, M. Jo, and H.-H. Chen, "A secure and efficient SIP authentication scheme for converged VoIP networks," Computer Communications, vol. 33, no. 14, pp. 1674-1681, 2010.
 E. Charfi, L. C. Fourati, and L. Kamoun, "QoS support of voice/video services under IEEE 802.11 n WLANs," in Communication Systems, Networks & Digital Signal Processing (CSNDSP), 2014 9th International Symposium on, 2014: IEEE, pp. 600-605.
م. حامدیان, ب. شاهقلی قهفرخی, and ن. مقیم, "یک پروتکل MAC آگاه از کیفیت تجربه کاربر مبتنی بر استاندارد IEEE 802.11 e," مجله مهندسی برق دانشگاه تبریز, vol. 47, no. 2, pp. 469-480, 2017.
 I. Tinnirello and S. Choi, "Temporal fairness provisioning in multi-rate contention-based 802.11 e WLANs," in World of Wireless Mobile and Multimedia Networks, 2005. WoWMoM 2005. Sixth IEEE International Symposium on a, 2005: IEEE, pp. 220-230.
 P. Teymoori, N. Yazdani, S. A. Hoseini, and M. R. Effatparvar, "Analyzing delay limits of high-speed wireless ad hoc networks based on IEEE 802.11 n," in Telecommunications (IST), 2010 5th International Symposium on, 2010: IEEE, pp. 489-495.
S. Upadhyay, S. Singh, M. Gupta, and A. K. Nagawat, "Improvement in Performance of the VoIP over WLAN," International Journal of Computer Applications (0975–8887), vol. 12, no. 4, pp. 12-15, 2010.
 D. Pong and T. Moors, "Call admission control for IEEE 802.11 contention access mechanism," in Global Telecommunications Conference, 2003. GLOBECOM'03. IEEE, 2003, vol. 1: IEEE, pp. 174-178.
 S. Oh, J. Shin, D. Kwak, and C. Kim, "A novel call admission control scheme for the IEEE 802.11 e EDCA," in Advanced Communication Technology, 2008. ICACT 2008. 10th International Conference on, 2008, vol. 3: IEEE, pp. 1832-1835.
P. Shete and R. Awale, "SmartCAC: Call admission control scheme to guarantee QoS for voice over IEEE 802.11 WLANs," International Journal of Computer Applications, vol. 42, no. 6, pp. 1-5, 2012.
 A. Hussain, N. ul Hassan, and F. Nadeem, "Measurement Based Call Admission Control (CAC) to Improve QoS for IEEE 802.11 E WLAN," in New Technologies, Mobility and Security (NTMS), 2014 6th International Conference on, 2014: IEEE, pp. 1-4.
N. Lalotra and D. Sharma, "Call Admission Control (CAC) with Load Balancing Approach for the WLAN Networks," 2016.
 S. Baliga, K. Chudasama, and D. Ambawade, "Real-time performance evaluation and stability testing of RasPBX for VoWiFi," in 2016 International Conference on Automatic Control and Dynamic Optimization Techniques (ICACDOT), 2016: IEEE, pp. 1089-1095.
K. B. Z. ALI, FAOUZI; OBAIDAT, MOHAMMAD S.; KAMOUN, LOTFI, "Enhanced IEEE 802.21 Handover Design for QoS Support in Next Generation Wireless Networks.," vol. 34, no. 1-4, pp. 221-243, 2016. [Online]. Available:
L. A. H. N. Hakem, "A new mobile SIP proxy integration solution to increase scalability in 5G mobile operators," IEEE 8th Annual Ubiquitous Computing, Electronics and Mobile Communication Conference (UEMCON), 2018. [Online].
S. S. Y.-T. Kim, "QoS-Aware Adaptive A-MPDU Aggregation Scheduler for Voice Traffic in Aggregation-Enabled High Throughput WLANs," IEEE Transactions on Mobile Computing, vol. 16, no. 10, pp. 2862 - 2875, 2017.
H. Zhai, X. Chen, and Y. Fang, "How well can the IEEE 802.11 wireless LAN support quality of service?," IEEE Transactions on Wireless Communications, vol. 4, no. 6, pp. 3084-3094, 2005.
 M. Voznak and J. Rozhon, "SIP infrastructure performance testing," in Proceedings of the 9th WSEAS international conference on Telecommunications and informatics, 2010: World Scientific and Engineering Academy and Society (WSEAS), pp. 153-158.
M. Voznak and J. Rozhon, "Approach to stress tests in SIP environment based on marginal analysis," Telecommunication Systems, pp. 1-11, 2013.
 A. Tirumala, T. Dunigan, and L. Cottrell, "Measuring end-to-end bandwidth with Iperf using Web100," in Presented at, 2003, no. SLAC-PUB-9733.
 L. A. Haibeh, N. Hakem, and O. A. Safia, "Performance evaluation of VoIP calls over MANET for different voice codecs," in 2017 IEEE 7th Annual Computing and Communication Workshop and Conference (CCWC), 2017: IEEE, pp. 1-6.