A BINARY ANTI-COLLISION ALGORITHM BASED ON SUM OF TWICE IN RFID SYSTEM

In order to improve the existing problems of large collision numbers and weak collision performance of the traditional binary collision algorithm,a binary anti-collision algorithm based on sum of twice is proposed.The random generation process of the new algorithm is optimized,which has different distribution probability through the sum of twice,although every random number (0,1)is the same.The new algorithm can obtain less collision times and higher channel utilization.