Method for transmitting data based on cooperative MIMO in wireless sensor network

摘要

PURPOSE: A method for transmitting data based on cooperative MIMO(Multi Input Multi Output) in a wireless sensor network is provided to evaluate a channel state formed between a wireless sensor node and a collecting node to transmit data only through a wireless sensor node with a good channel state, thereby reducing energy for transmitting data. CONSTITUTION: A sensor node generates collection data. The sensor node generates a selection signal based on a channel evaluation state. The sensor node transmits the collection data and selection signal to a plurality of sensor nodes. Only sensor nodes(SN1,SN4) selected by a transmission sensor node transmit the collection data to a collecting node(110).