The analysis of impact on wireless networks delay performance of EDCA access categories number adjustment

: pp. 112 - 119
Olga Panova, Kvitoslava Obelovska

Lviv Polytechnic National University, S. Bandery Str., 12/806, Lviv, 79013, UKRAINE

In this paper an adaptive ACs (Access Categories) number adjusting algorithm for the EDCA (Enhanced Distributed Channel Access) scheme is proposed. It has been shown that the total performance of the wireless network can be enhanced especially under the highly loaded network conditions. It has been introduced as a result of collecting a data buffer and the switching mechanism for AC queues. The simulation results demonstrate that the proposed adaptive ACs number adjusting algorithm for the EDCA scheme outperforms significantly the 802.11 specification. This outperformance of wireless network is observed under the large network size and high network load.

1. IEEE Std 802.11TM-2007, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications. IEEE Std. , 2007.
2. Li, T., Ni, Q., Malone, D., Leith, D., Xiao, Y., Turletti, T., A new MAC scheme for very high-speed WLANs // IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM), Buffalo-NY, USA, June 2006. — P.171-180.
3. Choi, S., Prado, J., Shankar, S., Mangold, S., IEEE 802.11e Contention-Based Channel Access (EDCF) Performance Evaluation // Proceedings of the IEEE International Conference on Communications, Anchorage, Alaska, May 2003. — 2. — P.1151-1156.
4. Perahia E., Stacey R., Next Generation Wireless LANs: Throughput, Robustness, and Reliability in 802.11n. — Cambridge University Press, 2008. — 416с.
5. Ci, S.,Sharif, H., Adaptive Optimal Frame Length Predictor for IEEE 802.11 Wireless LAN // Proceedings of 6th International Symposium on Digital Signal Processing for Communication Systems 2002. — P.59-63.
6. Skordoulis, D., Ni, Q., Ali, U., Hadjinicolaou, M., Analysis of Concatenation and Packing Mechanisms in IEEE 802.11n // PGNET 2007, Liverpool, UK, June 2007.
7. Bansal, A., Mandating QoS in Wireless LANs: White Paper. — NewLogic Technologies, 2005. —
8. Changwen, L., Stephens, A.P., Delayed Channel Access for IEEE 802.11e Based WLAN // IEEE International Conference on Communication, June 2006. — 10. — P.4811-4817.
9. Skordoulis, D., Ni, Q., Min, G., Borg, K., Adaptive delayed channel access for IEEE 802.11n WLANs // Proceedings of the IEEE International Conference on Circuits and Systems for Communications (ICCSC2008), May 26-28, 2008, Shanghai, China. — P.167-171.
10. Skordoulis, D., Ni, Q., Zarakovitis, C., A selective delayed channel access (SDCA) for the high-throughput IEEE 802.11n // Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference, Budapest, 5-8 April 2009. — P.1-6.
11. Lin, Y.S., Wang, J.Y., Hwang, W.S., Scheduling Mechanism for WLAN Frame Aggregation with Priority Support // Proceedings of the 2006 Joint Conference on Information Sciences, JCIS 2006, Kaohsiung, Taiwan, ROC, October 8-11, 2006. — P.844-847.
12. Ni, Q., Li, T., Turletti, T., Xiao, Y., AFR Partial MAC Proposal for IEEE 802.11n // IEEE 802.11n Working Group Document: IEEE 802.11-04-0950-00-000n, August 13, 2004.
13. Ni, J., Srikant, R., Distributed CSMA/CA Algorithms for Achieving Maximum Throughput in Wireless Networks // 2009 Information Theory and Applications Workshop (ITA), San Diego, California, February 2009.
14. Cali, F., Conti, M., Gregori, E., IEEE 802.11 Protocol: Design and Performance Evaluation of an Adaptive Backoff Mechanism // IEEE Journal on Selected Areas in Communications. — 2000. — 18(9). — P.1774-1786.
15. Kim, Y.-D., Kang, W.-S., Lee, D.-H., Yu, J.-H., Distance Adaptive Contention Window Mechanism for Wireless Sensor Networks // Proceedings of the 23rd International Technical Conference on Circuits/Systems, Computers and Communications, July 6-9, 2008, Shimonoseki City, Yamaguchi-Pref., Japan. — P.1693-1696.
16. Bononi, L., Conti, M., Gregori, E., Design and Performance Evaluation of an Asymptotically Optimal Backoff Algorithm for IEEE 802.11 Wireless LANs // Proceedings of the 33rd Hawaii International Conference on System Sciences, Maui, Hawaii, January 4-7, 2000.
17. Vittorio, S., Bello, L.L., An Approach to Enhance the QoS Support to Real-Time Traffic on IEEE 802.11e Networks // In 6th International WORKSHOP On Real Time Networks, Jul. 2007.
18. Naoum-Sawaya, J., Ghaddar, B., Khawam, S., Safa, H., Artail, H., Dawy, Z., Adaptive Approach for QoS Support in IEEE 802.11e Wireless LAN // Proceedings of the IEEE International Conference on Wireless And Mobile Computing, Networking And Communications, 2005, (WiMob’2005), Montreal, Canada, August 22-24, 2005. — P.167-173.
19. Jang, K.-W., A New Backoff Algorithm to Guarantee Quality of Service over IEEE 802.11 Wireless Local Area Networks // Wireless On-Demand Network Systems: Lecture Notes in Computer Science. — 2004. — 2928. — P.77-86.
20. Baroudi, U., Mohiuddin, A.M., Performance analysis of Internet applications over an adaptive IEEE 802.11 MAC architecture // Journal of the Franklin Institute. — 2006. — 343(4-5). — P.352-360.
21. Xu, D., Sakurai, T., Vu, H.L., An Analysis of Different Backoff Functions for an IEEE 802.11 WLAN // Proceedings of the 68th Semi-Annual IEEE Vehicular Technology Conference, VTC 2008-Fall, Calgary, Canada, 21-24 September 2008. — P.1-5.
22. Vitsas, V., Throughput analysis of linear backoff scheme in wireless LANs // Electronics Letters. — 2003. — 39(1). — P.99-100.
23. Xu, D., Sakurai, T., Vu, H.L., An Access Delay Model for IEEE 802.11e EDCA // IEEE Transactions on Mobile Computing. — 2009. — 8(2). — P.261-275.
24. Jangid, A.K., Sharma, N., Modified DCF for Throughput Enhancement in WLAN // Proceedings of the 14th National Conference on Communications, February 01-03, 2008, Bombay, Mumbai.
25. Zhao, Y., Liu, H., Adaptive EDCA Algorithm Using Video Prediction for Multimedia IEEE 802.11e WLAN // Proceedings of the Second International Conference on Wireless and Mobile Communications (ICWMC’06). — 2006. — P.10.
26. Cano, C., Bellalta, B., Oliver, M., Adaptive Admission Control Mechanism for IEEE 802.11e WLANs // The 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 07), Athens, Greece, September 2007.
27. Леонтьєва O., Обельовська К. Порівняння пропускних здатностей схем доступу dcf та edca безпровідних локальних мереж. НУ «Львівська політехніка» N 744 «Комп’ютерні науки та інформаційні технології». — 2012, pp. 64-68.
28. Leontyeva O., Obeljovska K. (2013): Performance Analysis of IEEE 802.11 EDCA for a Different Number of Access Categories and Comparison with DCF, Computer Networks: 20th International Conference, CN 2013, Lwowek Slaski, Poland, June 17-21, 2013. Proceedings (Communications in Computer and Information Science), Vol. 370, pp. 95-104.
29. Леонтьєва О., Обельовська К., Імітаційна модель множинного доступу до фізичного середовища безпровідних мереж. Технічні вісті. 2006/3(24) C. 51 — 54.
30. Леонтьєва О., Обельовська К., Моделювання множинного доступу до фізичного середовища безпровідних мереж. Технічні вісті. 2007, No. 1(25)-2(26), C. 78 — 81.

Панова О.С. Аналіз впливу адаптивної зміни числа категорій доступу схеми EDCA на часові характеристики безпровідної мережі / Панова О.С., Обельовська К.М. // Вісник Національного університету "Львівська політехніка". – 2015. – № ___ : Інформаційні системи та мережі. – С. ___–___. – Бібліографія: 30 назв.