Summary of Mathematics doctoral thesis: Improving the performance of throughput and fairness in IEEE 802.11 EDCA wireless Adhoc networks

The propose a new method aiming to adjust the TXOP parameter according to a dynamic mechanism that suits the priority of each data type from the existing limitations with TXOP parameter in IEEE 802.11 EDCA; the propose a novel fuzzy logic approach for enhancing the fairness of low priority data flows in IEEE 802.11 EDCA.
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Summary of Mathematics doctoral thesis: Improving the performance of throughput and fairness in IEEE 802.11 EDCA wireless Adhoc networks MINISTRY OF EDUCATION VIETNAM ACADEMY OF AND TRAINING SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY ----------------------------- LUONG DUY HIEU IMPROVING THE PERFORMANCE OF THROUGHPUTAND FAIRNESS IN IEEE 802.11 EDCA WIRELESS AD HOC NETWORKS Major: Mathematical Foundations for Computer Science Code: 9 46 01 10 SUMMARY OF MATHEMATICS DOCTORAL THESIS Ha Noi – 2020This thesis was done at: Graduate University of Science andTechnology, Vietnam Academy of Science and Technology.Supervisor 1: PGS.TS. Thai Quang VinhSupervisor 2: PGS.TS. Pham Thanh GiangReviewer 1: …Reviewer 2: …Reviewer 3: ….The dissertation will be defended at Graduate University of Science and Technology, 18 Hoang Quoc Viet street, Hanoi. Time: .............,.............., 2020This thesis could be found at National Library of Vietnam,Library of Graduate University of Science and Technology,Library of Vietnam Academy of Science and Technology. 1 INTRODUCTION 1. The urgency of this thesis In recent years, the field of the wireless network in general and adhoc networks in particular has been increasingly paid attention to by thebroad application domain, which directly impacts important fields such asmilitary, security, health care, aviation, etc. The applications of the Adhoc network span many areas of life frommilitary to civilian with many different variations. An example in the mili-tary field with FANET [44] allows intelligence to be collected, constructinga battle map. In the civil field with VANET [35, 15] network allows thedeployment of services for intelligent traffic. The BAN [9] network is usedin the medical field to enable the implementation of community healthcaremonitoring services. In recent years, the field of research about Adhoc networks at home[5, 1, 2] and abroad [51, 7, 24, 36] is interested by researchers because itbrings practical value and scientific value, opens up many opportunitiesfor application and enhancement of technology potential for each country.Many important problems are still being solved by scientists such as ac-cess control, route finding problem, reliable communication, service qualityassurance [4, 3]. In particular, a subclass that is currently interested in the researchcommunity is to deeply solve key problems at the MAC layer on IEEE802.11 standard to improve performance and improve service quality forapplications in Adhoc wireless networks. This classification problem coversmany problems to solve with complex technical constraints. It is a matter ofresource contention and transmission collision between network nodes andbetween data flow in the network. The wireless links with high-bit errors arecaused the packets to be retransmitted many times, lowering the effectivebandwidth. The external factors such as radio channel noise, interference,fading have affected the quality of the transmitted signal. In the Adhocnetwork, a station has to transmit both the direct data flow generated bythe station itself and the forward flows generated by neighboring flows.The effect of this dispute affects network performance. In the face of the great increase in wireless-based applications, the need 2for research towards improving performance for Adhoc networks becomesan urgent issue. Foreseeing that trend, Ph.D. students choose the topic:Improving the performance of throughput and fairness in IEEE802.11 EDCA wireless Adhoc networks. To ensure the feasibility of the research with limited time conditions,the existing equipment, and infrastructure. The Ph.D. student focuses onresearch direction to improve the throughput and fairness index at theMAC layer on the IEEE 802.11 standard. 2. Goals of the thesis (1) The propose a new method aiming to adjust the TXOP parameteraccording to a dynamic mechanism that suits the priority of each datatype from the existing limitations with TXOP parameter in IEEE 802.11EDCA. (2) The propose a novel fuzzy logic approach for enhancing the fairnessof low priority data flows in IEEE 802.11 EDCA. 3. Objectives of the thesis The thesis focuses on the following objects of the adhoc network: (1) Focus on Medium Access Control layer. (2) Focus on Enhanced Distributed Channel Access in IEEE 802.11EDCA. 4. Scope of thesis Reseach the parameters in the Enhanced Distributed Channel Accessof IEEE 802.11 EDCA based on throughput and fairness. 5. Research methods (1) Addressing existing p ...