计算机应用研究
計算機應用研究
계산궤응용연구
APPLICATION RESEARCH OF COMPUTERS
2015年
5期
1464-1466,1470
,共4页
杜宗印%章国安%袁红林%杨振
杜宗印%章國安%袁紅林%楊振
두종인%장국안%원홍림%양진
射频识别%ALOHA 算法%汉明重分组%吞吐量%总操作数
射頻識彆%ALOHA 算法%漢明重分組%吞吐量%總操作數
사빈식별%ALOHA 산법%한명중분조%탄토량%총조작수
radio frequency identification(RFID)%ALOHA algorithm%Hamming weight grouping%throughput%total number of operating
针对射频识别(RFID)系统中标签较多时动态帧时隙 ALOHA 算法识别效率快速下降的问题,在动态帧时隙 ALOHA 算法的基础上,利用标签 ID 前 M位的汉明重量对阅读器范围内标签进行分组,提出了一种基于汉明重分组的动态帧时隙 ALOHA 算法(LGDFSA),并利用 MATLAB 对它进行了仿真模拟。仿真结果表明,LGDF-SA 算法与动态帧时隙 ALOHA 算法相比,当标签数较多时,系统吞吐量提高,并趋于稳定,总操作数有所减少,系统总体效率提高。
針對射頻識彆(RFID)繫統中標籤較多時動態幀時隙 ALOHA 算法識彆效率快速下降的問題,在動態幀時隙 ALOHA 算法的基礎上,利用標籤 ID 前 M位的漢明重量對閱讀器範圍內標籤進行分組,提齣瞭一種基于漢明重分組的動態幀時隙 ALOHA 算法(LGDFSA),併利用 MATLAB 對它進行瞭倣真模擬。倣真結果錶明,LGDF-SA 算法與動態幀時隙 ALOHA 算法相比,噹標籤數較多時,繫統吞吐量提高,併趨于穩定,總操作數有所減少,繫統總體效率提高。
침대사빈식별(RFID)계통중표첨교다시동태정시극 ALOHA 산법식별효솔쾌속하강적문제,재동태정시극 ALOHA 산법적기출상,이용표첨 ID 전 M위적한명중량대열독기범위내표첨진행분조,제출료일충기우한명중분조적동태정시극 ALOHA 산법(LGDFSA),병이용 MATLAB 대타진행료방진모의。방진결과표명,LGDF-SA 산법여동태정시극 ALOHA 산법상비,당표첨수교다시,계통탄토량제고,병추우은정,총조작수유소감소,계통총체효솔제고。
On count of the rapid decline of efficiency when more tags were in radio frequency identification system, it used the Hamming weight of tags ID top Mbits to group the tags which were in the scope of the reader, this paper proposed a dynamic framed slotted ALOHA algorithm based on Hamming weight grouping (LGDFSA).And it simulated the algorithm by MAT-LAB.It compared with dynamic framed slotted ALOHA algorithm, the results show the system throughput is improved and tends to be stable, it cuts down the total number of operating in the system, the overall efficiency of RFID system has been ad-vanced.