Simulace směrovacích protokolů pro mobilní ad hoc sítě v prostředí ns3
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Date
Authors
Masár, Marek
ORCID
Advisor
Vajsar, Pavel
Referee
Hošek, Jiří
Mark
B
Journal Title
Journal ISSN
Volume Title
Publisher
Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií
Abstract
V prvej časti práce sa nachádza rozdelenie sietí. Je tu základná charakteristika manet sietí. V ďalšej kapitole sa nachádza rozdelenie smerovacích protokolov v sieťach manet na preaktívne, reaktívne a hybridné. V simulácii sú porovnávané 3 smerovacie protokoly, ktoré sú opísané v 2. kapitole. Simulácia je vykonaná v programe Ns-3, konkrétnejšie vo verzii 3.14. V 3. kapitole je tento sieťový simulátor bližšie špecifikovaný. Taktiež je tu spomenutá nadväznosť na staršiu verziu tohto programu, Ns-2. Cieľom tejto simulácie je vytvorenie siete s implementovanými smerovacími protokolmi a s určitým počtom uzlov, ktorým sa nastaví mobilita tak, aby sa táto sieť čo najviac podobala manet sieťam. Takisto boli vytvorené 2 aplikácie, na ktorých sa zisťovali hodnoty meškania paketov pre dané smerovacie protokoly. Ďalšou časťou práce bolo zavedenie podpory kvality služieb (QoS) a zavedenie merania spotreby energie pre jednotlivé uzly. Následnou činnosťou bolo porovnanie, v akej miere ovplyvnilo zavedenie podpory kvality služieb meškanie jednotlivých paketov pre podporované služby a tiež určiť rozdielnu spotrebu energie pri podpore kvality služieb a bez podpory. Výsledkom práce je zvýhodnenie hlasových služieb na úkor prenosu súboru po zavedení podpory kvality služieb. Percentuálne je zlepšenie hlasových služieb v rozmedzí 30–31 %, pričom pri prenose súboru sa zvýšilo meškanie paketov v rozmedzí 7–19 %. Taktiež miera spotrebovanej energie je väčšia po zavedení QoS. K počiatočnej hodnote batérie 1 J máme hodnotu rozdielu spotrebovanej energie po zavedení QoS približne 1 %.
The first part of thesis is about networks that are divided based on area. It includes also basic characteristic of Manet networks. The next chapter is about distribution of routing protocols into preactive, reactive, hybrid. In the simulation, there is comparison of 3 routing protocols, which are described in this chapter. The simulation is performed in program called Ns-3, more specifically in version 3.14. In the third chapter, this network simulator is described more closely. Here is also mentioned its continuity on previous version Ns-2. The goal of this simulation is to create a network with implemented routing protocols and with certain number of nodes, which has configured mobility, so the network looks like Manet network as much as possible. There are also 2 applications created, which were used to determine the delay for each routing protocol. Another part of thesis is about implementation of the quality of service (QoS) and energy model for each routing protocol. Energy model was used to calculate the remaining energy of node. Next activity summarizes how the implementation of QoS changed delay for used applications and how it changed the energy consumption of a node. The result of thesis is that the voice applications was preferred after the QoS implementation. The value of delay increased for ftp application. Percentually, the improvement for voice traffic was 30-31 %. The increase of delay was percentually 7-19 %. The difference in remaining energy after QoS implementation was about 1%. The actual amount of battery in the beginning of simulation was 1 J.
The first part of thesis is about networks that are divided based on area. It includes also basic characteristic of Manet networks. The next chapter is about distribution of routing protocols into preactive, reactive, hybrid. In the simulation, there is comparison of 3 routing protocols, which are described in this chapter. The simulation is performed in program called Ns-3, more specifically in version 3.14. In the third chapter, this network simulator is described more closely. Here is also mentioned its continuity on previous version Ns-2. The goal of this simulation is to create a network with implemented routing protocols and with certain number of nodes, which has configured mobility, so the network looks like Manet network as much as possible. There are also 2 applications created, which were used to determine the delay for each routing protocol. Another part of thesis is about implementation of the quality of service (QoS) and energy model for each routing protocol. Energy model was used to calculate the remaining energy of node. Next activity summarizes how the implementation of QoS changed delay for used applications and how it changed the energy consumption of a node. The result of thesis is that the voice applications was preferred after the QoS implementation. The value of delay increased for ftp application. Percentually, the improvement for voice traffic was 30-31 %. The increase of delay was percentually 7-19 %. The difference in remaining energy after QoS implementation was about 1%. The actual amount of battery in the beginning of simulation was 1 J.
Description
Citation
MASÁR, M. Simulace směrovacích protokolů pro mobilní ad hoc sítě v prostředí ns3 [online]. Brno: Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. 2013.
Document type
Document version
Date of access to the full text
Language of document
sk
Study field
Teleinformatika
Comittee
doc. Ing. Vít Novotný, Ph.D. (předseda)
prof. Ing. Jaroslav Koton, Ph.D. (místopředseda)
Ing. Martin Koutný, Ph.D. (člen)
Ing. Vojtěch Fiala (člen)
Ing. Martin Hasmanda (člen)
Ing. Ľuboš Nagy, Ph.D. (člen)
Date of acceptance
2013-06-20
Defence
Jak (na základě jakého zdroje) byly stanoveny výchozí hodnoty pro použitý energetický model v nástroji NS-3?
Na základě výsledků zpoždění pro službu VoIP se zapnutou podporou QoS (Obr. 8.7) uveďte, zda by bylo při
takovém zpoždění možné provozovat službu VoIP a jaká by byla kvalita přenášeného hlasu?
Existují nějaké nevýhody použití NAV vektoru pro ušetření energie ve stavu „naslouchání“?
Jakou jste navrhl optimalizaci?
Result of defence
práce byla úspěšně obhájena
Document licence
Standardní licenční smlouva - přístup k plnému textu bez omezení