Enhancements of the IEEE 802.11 Medium Access Control ... - PATS

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Chapter 9. Contention Window resettingFigure 9.21: RTS threshold equal to 3000 bytes: Total packets received of the eDRA, NIAMac, andmobiNIAMac against the DCF standard (STD)mance than eDRA and NIAMac. The uncontrolled behavior of the DCF results inthe dead of all nodes at 18 seconds, while the other protocols keep on living. Wecan also see that NIAMac and eDRA are competing with each other to have thebest throughput. But NIAMac has a longer lifetime than eDRA. That is the reasonwhy we combined eDRA with NIAMac to form mobileNIAMac. The mobiNIA-Mac has the best performance of all of them and the longest lifetime.This simulation verifies that it is worth to combine the NIAMac with the mobilityconcept of the eDRA protocol.170
CHAPTER10Enhanced selection Bounds -Neighbors andInterferences-Aware MAC protocol(EsB-mobiNIAMac)The Enhanced selection Bounds - Neighbors and Interferences-Aware MAC protocol(EsB-mobiNIAMac) is composed of the Enhanced selection Bounds (EsB) andmobile Neighbor and Interference -Aware Mac protocol (mobiNIAMac). The EsBmobiNIAMacadjusts the lower and upper bound considering the number of retransmissionattempts and the energy level (EsB) and resets the Contention Windowtaking into account the change of the number of nodes due to mobility, thenetwork load and the channel condition (mobiNIAMac).The EsB-mobiNIAMac algorithm is obtained during the progress of our previouswork and analysis.Below we remind shortly the main concepts of both used algorithms. Later on, inthe performance section, we present the comparison of this protocol against theIEEE 802.11 DCF standard and other combinations of the protocols obtained duringour research such as sB-mobiNIAMac (combination of basic selection Boundsalgorithm (sB) from Section 8.2 and mobiNIAMac algorithm), and sB-DRA (combinationof basic selection Bounds algorithm (sB) from Section 8.2 with the DynamicResetting Algorithm from Section 9.1).171
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Faculteit WetenschappenInformaticaE
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Chapter 0. Nederlandse samenvatting
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Chapter 0. English summaryalgorithm
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Chapter 0. List of publications8. S
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Contents1.6 Publications . . . . .
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Contents7.3.3 Blocking Problem (BP)
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Contents12 A cross-layer PHY-MAC pr
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List of Tables8.1 Examples of CW mi
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List of Figures3.6 CFP/ CP periods
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List of Figures8.10 (Lw)(Upp)Bounds
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List of AcronymsAC Access CategoryA
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Chapter 0. List of AcronymsFND Firs
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CHAPTER1Introduction1.1 State-of-th
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1.1. State-of-the-art in wireless n
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1.2. Wireless technologies organiza
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1.6. Publications1.6 PublicationsPa
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CHAPTER2Interaction between MAC lay
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CHAPTER3IEEE 802.11 standardThe IEE
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3.2. IEEE 802.11 DCF mechanismTable
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3.2. IEEE 802.11 DCF mechanismnode
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3.4. Interframe space periods and b
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CHAPTER6Simulation environmentThe N
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6.2. Simulation parametersour simul
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CHAPTER13Conclusions and Perspectiv
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Chapter 13. Conclusion and Perspect
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References[11] HSPA Mobile broadban
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References[43] Intelligent Transpor
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References[71] Chane L. Fullmer J.
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References[101] Mort Naraghi-Pour.
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References[158] Q. Lindsey D. Lymbe
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Enhancements of the IEEE 802.11 Medium Access Control ... - PATS

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