农业机械学报
農業機械學報
농업궤계학보
TRANSACTIONS OF THE CHINESE SOCIETY OF AGRICULTURAL MACHINERY
2010年
3期
163-168
,共6页
沈明霞%马奉先%孙玉文%周良%林相泽%熊迎军
瀋明霞%馬奉先%孫玉文%週良%林相澤%熊迎軍
침명하%마봉선%손옥문%주량%림상택%웅영군
农田信息采集%无线传感器网络%LEACH算法
農田信息採集%無線傳感器網絡%LEACH算法
농전신식채집%무선전감기망락%LEACH산법
Farm field information collection%Wireless sensor networks%LEACH algorithm
针对农田环境信息量丰富的特点,提出一种基于LEACH算法的改进型无线传感器网络路由算法--LEACH-SMC.在LEACH-SMC算法的稳态阶段,簇头节点到基站间通信采用临界距离来判断和选择多跳或单跳方式,在多跳方式中采用基于最小能量消耗的路由方式.应用Matlab对LEACH-SMC算法和LEACH算法进行仿真对比分析,结果表明, LEACH-SMC算法能提高网络有效覆盖面积并延长整个网络的寿命.
針對農田環境信息量豐富的特點,提齣一種基于LEACH算法的改進型無線傳感器網絡路由算法--LEACH-SMC.在LEACH-SMC算法的穩態階段,簇頭節點到基站間通信採用臨界距離來判斷和選擇多跳或單跳方式,在多跳方式中採用基于最小能量消耗的路由方式.應用Matlab對LEACH-SMC算法和LEACH算法進行倣真對比分析,結果錶明, LEACH-SMC算法能提高網絡有效覆蓋麵積併延長整箇網絡的壽命.
침대농전배경신식량봉부적특점,제출일충기우LEACH산법적개진형무선전감기망락로유산법--LEACH-SMC.재LEACH-SMC산법적은태계단,족두절점도기참간통신채용림계거리래판단화선택다도혹단도방식,재다도방식중채용기우최소능량소모적로유방식.응용Matlab대LEACH-SMC산법화LEACH산법진행방진대비분석,결과표명, LEACH-SMC산법능제고망락유효복개면적병연장정개망락적수명.
An improvement of LEACH algorithm was proposed, named LEACH-SMC.The LEACH-SMC protocol algorithm was carried out round by round, and every round was divided into two sections of setup phase and steady station.A critical distance was specified for every cluster head to judge when to use the single-hop or the multi-hop mode between the cluster heads and the base station.The coverage area was greatly improved by the multi-hop manner, and this manner also provided practical value in the nodes distribution in the farm field.It was effective for transmitting the message by single-hop mode, and it could greatly reduce the information delay and packet loss rate too.The coexistence of single-hop and multi-hop can combine the advantages.Simulation results demonstrated that LEACH-SMC protocol could increase network effective coverage area and prolong the network lifetime.