An Improved Spread Slotted ALOHA Anti-collision Algorithm in RFID System

被引:0
作者
Liao Yanping [1 ]
Wei Xinyue [1 ]
机构
[1] Harbin Engn Univ, Coll Commun & Informat Technol, Harbin, Heilongjiang, Peoples R China
来源
PROCEEDINGS FIRST INTERNATIONAL CONFERENCE ON ELECTRONICS INSTRUMENTATION & INFORMATION SYSTEMS (EIIS 2017) | 2017年
基金
中国国家自然科学基金;
关键词
RFID; Anti-collision; Spread; Packet retransmission mechanism; throughput;
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
In the Radio Frequency Identification (RFID) system, the information of tags will collision when there are several tags in the identification process of readers. This paper first introduces the basic principle of collision, and then it mainly analyzes the respective characteristics of time division multiple access (TDMA) and code division multiple access (CDMA). At the same time it introduces the ALOHA algorithm basic on TDMA. On the basis of them this paper puts forward the improved spread slotted ALOHA anti-collision algorithm. This algorithm not only combine with the principle of TDMA and CDMA, but also it use packet retransmission mechanism when tag collision occurs. It means that it groups the tags when the tags collision still occurs, they will be retransmit in the following time slot. It can be seen from the simulation results, the improved algorithm can effectively enhance the throughput and it reduce delay performance of the system.
引用
收藏
页码:467 / 472
页数:6
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