TY - GEN
T1 - Fault tolerance of connectivity performance in CDMA-based wireless sensor networks
AU - Huang, Yung Fa
AU - Chen, Ching Mu
AU - Chen, Tsair Rong
AU - Chen, Jong Shin
AU - Sum, John
PY - 2007/12/1
Y1 - 2007/12/1
N2 - In this paper, we investigate the fault tolerance of connectivity probability for CDMA-based wireless sensor networks with variations of nodes deployment. The variations of deployment are modeled by 2D Gaussian distribution with zero-mean for the triangle, grid and hexagon topologies. Thus, the k-connectivity performance is studied through the outage probability of CDMA signal links. We evaluate the connectivity performance with SIR 0,3-con, the minimum requirement of SIR, SIR0 for the 3-connectivity, when the nodes suffer a failure rate Pf. Simulation results show that the hexagonal and grid topologies suffer a degradation of -2.4 and -0.5 dB, respectively, when the failure rate Pf equals 0.1. However, the triangular topology shows robust fault tolerance with the failure rate Pf below 0.5 and moderate variations of deployment.
AB - In this paper, we investigate the fault tolerance of connectivity probability for CDMA-based wireless sensor networks with variations of nodes deployment. The variations of deployment are modeled by 2D Gaussian distribution with zero-mean for the triangle, grid and hexagon topologies. Thus, the k-connectivity performance is studied through the outage probability of CDMA signal links. We evaluate the connectivity performance with SIR 0,3-con, the minimum requirement of SIR, SIR0 for the 3-connectivity, when the nodes suffer a failure rate Pf. Simulation results show that the hexagonal and grid topologies suffer a degradation of -2.4 and -0.5 dB, respectively, when the failure rate Pf equals 0.1. However, the triangular topology shows robust fault tolerance with the failure rate Pf below 0.5 and moderate variations of deployment.
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M3 - Conference contribution
AN - SCOPUS:38149041687
SN - 9783540747666
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 444
EP - 454
BT - Frontiers of High Performance Computing and Networking - ISPA 2007 Workshops. ISPA 2007 International Workshops - SSDSN, UPWN, WISH, SGC, ParDMCom,HiPCoMB, and IST-AWSN, Proceedings
T2 - 5th International Symposium on Parallel and Distributed Processing and Applications, ISPA 2007 International Workshops: SSDSN, UPWN, WISH, SGC, ParDMCom, HiPCoMB, and IST-AWSN
Y2 - 29 August 2007 through 31 August 2007
ER -