METHOD FOR BLOCK RETRANSMISSION SCHEME BASED ON IEEE 802.15.4 TO REDUCE COMMUNICATION OVERHEADS IN WBAN ENVIRONMENT AND THE WBAN SYSTEM THE METHOD APPLIED THERETO

摘要

The present invention relates to a method for reducing retransmission size for the occurrence of data errors using a dynamic blocking method according to the error rate change at a reception side at the time of data transmission of a sensor device. The present invention provides a method for reducing the retransmission size according to the occurrence of the data errors using a dynamic blocking method comprising the steps of enabling a transmission node to calculate the error rate of a current channel; determining the number of blocks transmitted according to the calculated error rates; executing a packetizing work for the transmission of the block; storing the block in the buffer; executing the transmission of the packet to the reception node; receiving a response message from the reception node; and terminating the transmission work after updating the number of cases to calculate the next error rate prediction.