Energy and Throughput Optimal Operating Region in Slotted CSMA/CA Based WSN

In this letter, we explore the boundaries of optimal operations pertaining to maximum throughput and minimum energy consumption for wireless sensor networks (WSNs) that adopt low-power slotted CSMA/CA as the medium access control scheme. To that end, a non-trivial analysis of energy consumption is performed in the process referring to existing model frameworks that are shown to be equivalent. Perspectives drawn in this work on optimal points of operations, as mapped onto backoff parameters, can help contain wastes of bandwidth due to heightened collisions during periods of traffic intensity and prolong network lifetime by properly reducing attempts to send sensed data for energy conservation during uneventful periods.