TY - GEN
T1 - A low-complexity cooperative localization algorithm based on variational message passing in wireless networks
AU - Yuan, Weijie
AU - Wu, Nan
AU - Li, Bin
AU - Wang, Hua
AU - Kuang, Jingming
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/12/18
Y1 - 2014/12/18
N2 - We consider a wireless network where target nodes aim to locate themselves. A cooperative localization algorithm can provide high accuracy by exchanging location information between nodes. In this paper, a novel distributed cooperative localization algorithm based on factor graph and variational message passing (VMP) is proposed. Compared with other message passing method, VMP algorithm features lower communication overhead. An approximation of likelihood function is made thus all messages on factor graph can be obtained in closed Gaussian forms and therefore reduce the computational complexity and communication cost. Simulation results show that the proposed method performs very close to SPAWN with much lower complexity.
AB - We consider a wireless network where target nodes aim to locate themselves. A cooperative localization algorithm can provide high accuracy by exchanging location information between nodes. In this paper, a novel distributed cooperative localization algorithm based on factor graph and variational message passing (VMP) is proposed. Compared with other message passing method, VMP algorithm features lower communication overhead. An approximation of likelihood function is made thus all messages on factor graph can be obtained in closed Gaussian forms and therefore reduce the computational complexity and communication cost. Simulation results show that the proposed method performs very close to SPAWN with much lower complexity.
KW - Cooperative Localization
KW - Gaussian Message Representation
KW - Taylor Expansion
KW - Variational Message Passing
UR - http://www.scopus.com/inward/record.url?scp=84921668266&partnerID=8YFLogxK
U2 - 10.1109/WCSP.2014.6992025
DO - 10.1109/WCSP.2014.6992025
M3 - Conference contribution
AN - SCOPUS:84921668266
T3 - 2014 6th International Conference on Wireless Communications and Signal Processing, WCSP 2014
BT - 2014 6th International Conference on Wireless Communications and Signal Processing, WCSP 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 6th International Conference on Wireless Communications and Signal Processing, WCSP 2014
Y2 - 23 October 2014 through 25 October 2014
ER -