METHOD FOR TRANSMITTING DATA ADAPTING NAKAGAMI-N FADING CHANNEL MODEL AND LDPC CHANNEL CODING IN SENSOR NETWORK

摘要

PURPOSE: A data transmission method is provided to execute the error correction coding of sensed data to the degree of superior performance which is approximate to Shannon limit by executing the channel encoding of sensed data using a LDPC mode. CONSTITUTION: A header node receives sensed data from a plurality of the sensor nodes(SN1,SN2,SN3,SN4). The header node removes repeated data among the sensor nodes or the sensed data of the header node based on the correlation relation between the received sensing data and the sensed data of the header node. The header node executes the channel encoding of generated collection data using a LDPC(Low Density Parity Check) mode.