CAJ | 학술논문

为了提高无线传感网络中节点的定位精度，同时又希望降低节点的定位开销，提出接收信号强度（ RSSI）定位算法。以RSSI和三边定位原理为基础，详细阐述了该算法的定位思想，以伪代码的形式描述未知节点定位的实现过程。从存储、计算和通信开销3个方面与ALA方案做了定性分析，针对不同的冗余系数、不同的定位轮数和不同的信标数量进行了仿真，与ALA方案做了定量分析。分析结果表明，该算法达到了提高无线传感网络定位精度的目的。
위료제고무선전감망락중절점적정위정도，동시우희망강저절점적정위개소，제출접수신호강도（ RSSI）정위산법。이RSSI화삼변정위원리위기출，상세천술료해산법적정위사상，이위대마적형식묘술미지절점정위적실현과정。종존저、계산화통신개소3개방면여ALA방안주료정성분석，침대불동적용여계수、불동적정위륜수화불동적신표수량진행료방진，여ALA방안주료정량분석。분석결과표명，해산법체도료제고무선전감망락정위정도적목적。
To improve the localization accuracy in wireless sensor network,but also hope to reduce the overhead of locating nodes, an algorithm is proposed.With RSSI and trilateral positioning principle as the foundation,this paper elaborates ideological orientation, and describes the implementation process of unknown node localization in pseudo code form.Compared with ALA program,the storage, computing,and communication overhead are taken for qualitative analysis. Simulations are quantitatively analyzed with different redundancy factor,different positioning rounds and different numbers of beacon. The results show that the algorithm can improve the positioning accuracy of wireless sensor network.