@InProceedings{IR-EE-RT_2008:017, author = {Bj{\"o}rn Johansson and Cesare Maria Carretti and Mikael Johansson},title = {On Distributed Optimization using Peer-to-Peer Communications in Wireless Sensor Networks},booktitle = {Proceedings of {IEEE} {SECON}},year = {2008},month = June, abstract = {We describe and evaluate a suite of distributed and computationally efficient algorithms for solving a class of convex optimization problems in wireless sensor networks. The problem class has wide applications in estimation, detection, localization, coordination and resource sharing. We focus on peer-to-peer algorithms where nodes only exchange data with their immediate neighbors, and consider three distinct alternatives: a dual-based broadcast algorithm, a novel stochastic unicast algorithm, and a linear broadcast algorithm tailored for least-squares problems. We implement the algorithms in the network simulator NS2 and present extensive simulation results for random topologies.} }