计算机系统应用
計算機繫統應用
계산궤계통응용
APPLICATIONS OF THE COMPUTER SYSTEMS
2010年
2期
62-66
,共5页
无线传感器网络%节点定位%DV-Hop%邻节点空间顺序序列
無線傳感器網絡%節點定位%DV-Hop%鄰節點空間順序序列
무선전감기망락%절점정위%DV-Hop%린절점공간순서서렬
wireless sensor networks%localization%DV-hop%ordered neighboring nodes in space
针对典型的DV-Hop定位算法中未知节点在计算与信标节点间距离时估算的不足,在DV-Hop算法的基础上提出了一种优化定位精度的算法.考虑并分析了未知节点与信标节点的路径中相邻三个节点的通信边组成的夹角对计算距离的影响,提出了一种基于"邻节点空间顺序"序列标号法计算夹角的方案,实验仿真验证了该优化定位算法的有效性和可行性.
針對典型的DV-Hop定位算法中未知節點在計算與信標節點間距離時估算的不足,在DV-Hop算法的基礎上提齣瞭一種優化定位精度的算法.攷慮併分析瞭未知節點與信標節點的路徑中相鄰三箇節點的通信邊組成的夾角對計算距離的影響,提齣瞭一種基于"鄰節點空間順序"序列標號法計算夾角的方案,實驗倣真驗證瞭該優化定位算法的有效性和可行性.
침대전형적DV-Hop정위산법중미지절점재계산여신표절점간거리시고산적불족,재DV-Hop산법적기출상제출료일충우화정위정도적산법.고필병분석료미지절점여신표절점적로경중상린삼개절점적통신변조성적협각대계산거리적영향,제출료일충기우"린절점공간순서"서렬표호법계산협각적방안,실험방진험증료해우화정위산법적유효성화가행성.
The precision of DV-Hop localization algorithm is not good enough when it is used to compute the distance value between unknown nodes and beacon nodes. To overcome its disadvantage, a precision improved algorithm based on DV-Hop is proposed. The three neighboring nodes in the route of the unknown node to the beacon node are analyzed, and an improced DV-Hop Location Algorithm based on the Ordered Neighboring Nodes in Space is proposed. Simularion proves that the improved algorithm is effective and feasible.