by pradeep raja

1. Mobile Element Assisted Cooperative
Localization for Wireless Sensor
Network with Obstacles
BATCH:6
R. Kanimozhi (080606119022)
M. Pradeep raja (080606119035)
R. Reshmi (080606119042)
D. Jayaprakash (090906119004)
Guided By
Mr.K.Karuppasamy,M.E.,MISTE.,(Ph.D)

2. Objective
• Existence of obstacles in mobility.
• An optimal movement scheduling method with
mobile elements.
• Mobile anchor node cooperates with static sensor
node.
• Achieving high localization accuracy and
coverage.
• Multi power-level mobile anchor assisted range
free algorithm for WSN’s with obstacles.

3. Existing System
• Range free localization algorithms.
• Maximum transmission radius and half of that
radius transmissions are possible.
• Three communications are possible.
– Symmetric communication
– Asymmetric communication
– No communication
• Novel convex position estimation algorithm.

4. Disadvantage of Existing System
• No communication
• Physical obstacles
• Loss of coverage
• Node failures

5. Proposed System
• Cooperative localization algorithm.
• Range free algorithm for WSN’s.
• Novel convex position algorithm estimation.
• To reduce the impact of channel fading.
• Range free localization scheme for large scale
sensor networks.

6. References
1.A. J. Weiss and J. S. Picard, “Network localization with
biased range measurements," IEEE Trans. Wireless
Commun., vol. 7, no. 1, pp. 298-304, Jan. 2008.
2.Z. Li, W. Dehaene, and G. Gielen, “A 3-tier UWB-
based indoor localization system for ultra-low-power
sensor networks," IEEE Trans.Wireless Commun., vol.
8, no. 6, pp. 2813-2818, June 2009.
3. H. Chen, Q. Shi, P. Huang, H. V. Poor, and K. Sezaki,
“Mobile anchor assisted node localization for wireless
sensor networks," in Proc. 20th IEEE Int’l Symp.
Personal, Indoor Mobile Radio Commun. (PIMRC
2009), Tokyo, Japan, Sept. 2009, pp. 1-5.