A Novel Time-aware Frame Adjustment Strategy for RFID Anti-collision

• 作者: Chunyang Ma Haipeng Chen Jian Su Kexiong Liu Yu Han
• 来源期刊: 计算机、材料和连续体(英文)
• 学科: 工学
• 关键词: RADIO FREQUENCY identification ANTI-COLLISION ALPHA TIME efficiency
• 年，卷（期）: 2018,（11）
• 页码范围: 195-204
• 页数: 10页
• 分类号: TP3

摘要

Recently,object identification with radio frequency identification(RFID)technology is becoming increasingly popular.Identification time is a key performance metric to evaluate the RFID system.The present paper analyzes the deficiencies of the state-of-the-arts algorithms and proposes a novel sub-frame-based algorithm with adaptive frame breaking policy to lower the tag identification time for EPC global C1 Gen2 UHF RFID standard.Through the observation of slot statistics in a sub-frame,the reader estimates the tag quantity and efficiently calculates an optimal frame size to fit the unread tags.Only when the expected average identification time in the calculated frame size is less than that in the previous frame size,the reader starts the new frame.Moreover,the estimation of the proposed algorithm is implemented by the look-up tables,which allows dramatically reduction in the computational complexity.Simulation results show noticeable throughput and time efficiency improvements of the proposed solution over the existing approaches.