2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/133960We are concerned with maximizing the lifetime of a data-gathering wireless sensor network consisting of set of nodes directly communicating with a base-station. We model this scenario as the m-message interactive communication between multiple correlated informants (sensor nodes) and a recipient (base-station). With this framework, we show that m-message interactive communication can indeed enhance network lifetime. Both worst-case and average-case performances are considered.5 pages. To appear in ISIT-2007 (Final version). Major revision wrt version 2Information TheoryC.2; E.4; H.1.1text