Sciweavers

5901 search results - page 75 / 1181
» Algorithms for Wireless Sensor Networks
Sort
View
VTC
2006
IEEE
111views Communications» more  VTC 2006»
15 years 9 months ago
Distributed Stochastic Power and Rate Allocation for Energy Minimization in Wireless Sensor Networks
— In this paper, we propose a distributed stochastic algorithm for power and rate allocation in ad hoc wireless sensor networks. The problem we deal with is formulated as a trans...
Chun-Hung Liu, Ari Arapostathis
IWNAS
2006
IEEE
15 years 9 months ago
Comparisons of Three Kalman Filter Tracking Algorithms in Sensor Network
This paper compares extended Kalman filters with the P, PV and PVA dynamics models for object tracking in wireless network. Experiments shows that PVA achieves the best and P per...
Yifeng Zhu, Ali Shareef
INFOCOM
2008
IEEE
15 years 9 months ago
On the Construction of a Maximum-Lifetime Data Gathering Tree in Sensor Networks: NP-Completeness and Approximation Algorithm
Abstract—Energy efficiency is critical for wireless sensor networks. The data gathering process must be carefully designed to conserve energy and extend the network lifetime. Fo...
Yan Wu, Sonia Fahmy, Ness B. Shroff
PERCOM
2006
ACM
16 years 2 months ago
Exploring Spatial Correlation for Link Quality Estimation in Wireless Sensor Networks
The irregularity in quality of wireless communication links poses significant research challenges in wireless sensor network design. Dynamic network conditions and environmental f...
Yingqi Xu, Wang-Chien Lee
TCOM
2008
192views more  TCOM 2008»
15 years 2 months ago
Joint source coding, routing and power allocation in wireless sensor networks
This paper proposes a cross-layer optimization framework for the wireless sensor networks. In a wireless sensor network, each sensor makes a local observation of the underlying phy...
Jun Yuan, Wei Yu