แจ้งเอกสารไม่ครบถ้วน, ไม่ตรงกับชื่อเรื่อง หรือมีข้อผิดพลาดเกี่ยวกับเอกสาร ติดต่อที่นี่ ==>
หากไม่มีอีเมลผู้รับให้กรอก thailis-noc@uni.net.th
หากไม่มีอีเมลผู้รับให้กรอก thailis-noc@uni.net.th
Nattaphon Sangjumpa. Analysis of adaptive multi-hop time synchronization in large wireless sensor networks. Master's Degree(Information and Communication Technology for Embedded Systems). Thammasat University. Thammasat University Library. : Thammasat University, 2016.
Analysis of adaptive multi-hop time synchronization in large wireless sensor networks
Name: Nattaphon Sangjumpa
keyword:
Time synchronization
LCSH:
Sensor networks
Abstract:
In this thesis, we study time synchronization problem in multi-hop wireless sensor networks. Specifically, we perform a simulation-based study of the Adaptive Multi-Hop Time Synchronization (AMTS) protocol proposed by Noh et al [1] for different network topologies. AMTS is an extension of the Timing-sync Protocol for Sensor Networks (TPSN) protocol [2] and aims to increase the energy efficiency of time synchronization in large-scale and long-lived multi-hop wireless sensor networks. Given that AMTS has been analyzed for some simple topologies like chain networks, here we analyze AMTS for more general two-dimensional topology such as grids. We also look at the effect of key parameters of AMTS such as re-sync period, the number of beacons per pairwise synchronization, and the synchronization mode. The performance metrics we look at are synchronization error, overhead, and energy consumption. We perform our simulation using the OMNeT++ simulator. Our simulation results show similar results as what have been found earlier with the chain topology. Specifically, we found that: i) For all topologies, as the network size increases, all three performance metrics get worse ; ii) When the re-sync period increases, the timing error becomes worse while the overhead and energy consumption are better ; and iii) For the amount of sensing activity assumed in the simulation, all three performance metrics are better for the session-initiated (SI) mode, compared to the always-on (AO) mode
Thammasat University. Thammasat University Library
Address:
BANGKOK
Email:
preserv@tu.ac.th
Name: Somsak Kittipiyakul
Role:
advisor
Name: Gordon, Steven
Role:
co-advisor
Created:
2016
Modified:
2564-05-19
Issued:
2021-05-18
วิทยานิพนธ์/Thesis
application/pdf
eng
DegreeName: Master of Science
Level: Master's Degree
Grantor: Thammasat University
©copyrights Thammasat University
RightsAccess:
ใช้เวลา
0.028269 วินาที
Nattaphon Sangjumpa
| Title | Contributor | Type |
|---|---|---|
| Analysis of adaptive multi-hop time synchronization in large wireless sensor networks
มหาวิทยาลัยธรรมศาสตร์ Nattaphon Sangjumpa | Somsak Kittipiyakul Gordon, Steven | วิทยานิพนธ์/Thesis |
Somsak Kittipiyakul
Gordon, Steven
| Title | Creator | Type and Date Create |
|---|---|---|
| Receiver-based prioritization scheme for safety messages in high density vehicular ad hoc networks
มหาวิทยาลัยธรรมศาสตร์ Somsak Kittipiyakul;Gordon, Steven;Surapa Thiemjarus | Sam Banani | วิทยานิพนธ์/Thesis |
| Analysis of adaptive multi-hop time synchronization in large wireless sensor networks
มหาวิทยาลัยธรรมศาสตร์ Somsak Kittipiyakul;Gordon, Steven | Nattaphon Sangjumpa | วิทยานิพนธ์/Thesis |
| Using multiple directories for service discovery in wireless sensor networks
มหาวิทยาลัยธรรมศาสตร์ Gordon, Steven | Thanatporn Kangwanpornsiri | วิทยานิพนธ์/Thesis |
| Handover and gateway selection techniques for integrating ad hoc networks with mobile networks
มหาวิทยาลัยธรรมศาสตร์ Gordon, Steven | Jirawat Thaenthong | วิทยานิพนธ์/Thesis |