TY - GEN
T1 - Distributed estimation in multi-agent networks
AU - Sankar, Lalitha
AU - Poor, H. Vincent
PY - 2012
Y1 - 2012
N2 - A problem of distributed state estimation at multiple agents that are physically connected and have competitive interests is mapped to a distributed source coding problem with additional privacy constraints. The agents interact to estimate their own states to a desired fidelity from their (sensor) measurements which are functions of both the local state and the states at the other agents. For a Gaussian state and measurement model, it is shown that the sum-rate achieved by a distributed protocol in which the agents broadcast to one another is a lower bound on that of a centralized protocol in which the agents broadcast as if to a virtual CEO converging only in the limit of a large number of agents. The sufficiency of encoding using local measurements is also proved for both protocols.
AB - A problem of distributed state estimation at multiple agents that are physically connected and have competitive interests is mapped to a distributed source coding problem with additional privacy constraints. The agents interact to estimate their own states to a desired fidelity from their (sensor) measurements which are functions of both the local state and the states at the other agents. For a Gaussian state and measurement model, it is shown that the sum-rate achieved by a distributed protocol in which the agents broadcast to one another is a lower bound on that of a centralized protocol in which the agents broadcast as if to a virtual CEO converging only in the limit of a large number of agents. The sufficiency of encoding using local measurements is also proved for both protocols.
UR - http://www.scopus.com/inward/record.url?scp=84867513448&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84867513448&partnerID=8YFLogxK
U2 - 10.1109/ISIT.2012.6284202
DO - 10.1109/ISIT.2012.6284202
M3 - Conference contribution
AN - SCOPUS:84867513448
SN - 9781467325790
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 329
EP - 333
BT - 2012 IEEE International Symposium on Information Theory Proceedings, ISIT 2012
T2 - 2012 IEEE International Symposium on Information Theory, ISIT 2012
Y2 - 1 July 2012 through 6 July 2012
ER -