Trilateration Based localization Algorithm for Wireless Sensor Network
Oguejiofor O. S1, Aniedu A. N2, Ejiofor H. C3, Okolibe A. U4
1Oguejiofor Obinna Samuel, Department of Electronic and computer Engineering, Nnamdi Azikiwe University, Awka.
2Aniedu A.N, Department of Electronic and Computer Engineering, Nnamdi Azikiwe University, Awka .
3Ejiofor H.C, Department of Electronic and Computer Engineering, Nnamdi Azikiwe University, Awka.
4Okolibe A.U, Department of Electronic and Computer Engineering, Nnamdi Azikiwe University, Awka.
Manuscript received on September 05, 2013. | Revised Manuscript received on September 11, 2013. | Manuscript published on September 15, 2013. | PP: 21-27 | Volume-1, Issue-10, September 2013. | Retrieval Number: J04470911013/2013©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: A Trilateration based localization algorithm for determining the position of nodes in a wireless sensor network is proposed. Details regarding the implementation of such algorithm are also discussed. Experiments were performed in a testbed area containing anchor and blind nodes deployed in it to characterize the pathloss exponent and to determine the localization error of the algorithm. The pathloss exponent of the testbed area was computed to be n=2.2 where as the algorithm is shown to have localization error of 0.74m which is acceptable because is not much.
Keywords: Algorithm, beacon, pathloss, Trilateration.