A COMPOUND TAG NUMBER ESTIMATION SCHEME FOR ALOHA BASED ANTI-COLLISION ALGORITHM IN RFID NETWORKS

被引：0
作者：
Li, Zhengping [1 ]
Zhang, Changnian [1 ]
Huang, Ming [1 ]
Shi, Hao [1 ]
机构：
[1] North China Univ Technol, Coll Informat Engn, Beijing 100144, Peoples R China
来源：
PROCEEDINGS OF 2011 INTERNATIONAL CONFERENCE ON COMMUNICATION TECHNOLOGY AND APPLICATION, ICCTA2011 | 2011年
关键词：
Maximum likelihood; RFID; Moment estimation; Aloha;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
For the aloha based anti-collision algorithm in RFID networks, the tag collisions could greatly reduce the throughput of the system. If the number of tags is gotten, the throughput can be greatly improved. Based on the different performance of the maximum likelihood estimation and the moment based estimation, the compound estimation scheme combines the advantages of these two estimation schemes to enhance the estimation accuracy. A Hysteresis comparator is introduced into the compound estimation scheme to avoid ping-pang effect during estimation. Simulation results show that the proposed scheme has high estimation accuracy whether the frame is short or long.
引用
收藏
页码：742 / 746
页数：5
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