Analýza standardu ZigBee v simulačním nástroji NS-2
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B
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Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií
Abstract
Práca sa zaoberá simuláciou bezdrôtových senzorových sietí ZigBee v nástroji Network Simulator 2. Je rozdelená na dve časti -- teoretickú a praktickú. Teoretická časť je tvorená popisom štandardu ZigBee, komunikačným protokolom a komunikáciou, ktorú tento štandard používa. Praktická časť popisuje simulačný nástroj, konfiguráciu bezdrôtových sietí v tomto nástroji, samotnú simuláciu a vyhodnotenie priepustnosti, oneskorenia, stratovosti a energetickej náročnosti siete, pomocou metrík. Simulované boli dve topológie definované štandardom ZigBee. A to HVIEZDA a MESH. Boli pozorované zmeny parametrov sietí pri TCP a UDP prenose v daných topológiách. Vyhodnocované metriky sú počítané pri zmenách parametrov superrámca (BO, SO). Tieto zmeny sa najviac prejavili na spotrebe energie siete, pri danej kombinácii BO, SO. Počas simulácie sa automaticky menila prenosová rýchlosť siete do doby, kým nebola stratovosť siete menšia ako 1 %. Z dôvodu dosiahnutia optimálnej priepustnosti siete. Priame rozdiely medzi TCP a UDP prenosom nebolo možné porovnať, pretože výsledky simulácie boli vygenerované pri rôznych prenosových rýchlostiach. No napriek tomu sa potvrdil vplyv parametrov superrámca na vlastnosti site.
The semestral project deals with the simulation of wireless sensor networks based on ZigBee standard in Network Simulator 2. Project is divided into two parts - theoretical and practical. The theoretical part consists of a description of standard ZigBee, communication protocols and communication used by this standard. The practical part describes the simulation tool, configuration of wireless networks in this tool, the actual simulation and evaluation of throughput, delay, loss rates and energy consumption using network metrics. Two topologies were simulated defined by the ZigBee standard. It was the STAR and the MESH. Changes were observed in the parameters of the network TCP and UDP transmission in these topologies. Evaluated metrics are calculated for changes in parameters of the framework (BO, SO). The changes were most expressed in the consumption of the energy by the network by the combination BO, SO. During the simulation, the data rate of the network automatically changed until the loss rates of the network was smaller than 1 %. In order to achieve optimal network throughput. Direct difference between TCP and UDP transmission could not be compared because the simulation results were generated by different data rate nevertheless influence of parameters on the properties of super network framework were confirmed.
The semestral project deals with the simulation of wireless sensor networks based on ZigBee standard in Network Simulator 2. Project is divided into two parts - theoretical and practical. The theoretical part consists of a description of standard ZigBee, communication protocols and communication used by this standard. The practical part describes the simulation tool, configuration of wireless networks in this tool, the actual simulation and evaluation of throughput, delay, loss rates and energy consumption using network metrics. Two topologies were simulated defined by the ZigBee standard. It was the STAR and the MESH. Changes were observed in the parameters of the network TCP and UDP transmission in these topologies. Evaluated metrics are calculated for changes in parameters of the framework (BO, SO). The changes were most expressed in the consumption of the energy by the network by the combination BO, SO. During the simulation, the data rate of the network automatically changed until the loss rates of the network was smaller than 1 %. In order to achieve optimal network throughput. Direct difference between TCP and UDP transmission could not be compared because the simulation results were generated by different data rate nevertheless influence of parameters on the properties of super network framework were confirmed.
Description
Citation
STRAČÁR, I. Analýza standardu ZigBee v simulačním nástroji NS-2 [online]. Brno: Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. 2012.
Document type
Document version
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sk
Study field
Teleinformatika
Comittee
doc. Ing. Ivan Rampl, CSc. (předseda)
doc. Ing. Ivo Lattenberg, Ph.D. (místopředseda)
Ing. Jaroslav Vrána, Ph.D. (člen)
doc. Ing. Jan Jeřábek, Ph.D. (člen)
Ing. Milan Šimek, Ph.D. (člen)
Ing. Patrik Morávek, Ph.D. (člen)
Ing. Martin Zukal, Ph.D. (člen)
Date of acceptance
2012-06-13
Defence
Student reagoval na otázky oponenta a komise.
Jaké jiné typy linkové vrstvy lze v simulačním nástroji simulovat. Ve své práci jste uvažoval typ LL, co tato zkratka znamená?
Popište zdali protokol Zigbee specifikuje využití transportního protokolu UDP a TCP. Dle mého názoru nikoliv. Jak je tedy možné, že v simulačních nástrojích používáte pro přenos protokol UDP a TCP?
Result of defence
práce byla úspěšně obhájena
Document licence
Standardní licenční smlouva - přístup k plnému textu bez omezení