摘要
Purpose: The purpose of this paper is to propose a distributed protocol to build a logical coordinate system based on the hop counts of each node to four selected landmarks, and the real location information is not needed. Design/methodology/approach: The designed protocol uses the sink node as one of the landmarks and then selects three other sensor nodes near the corners of the sensor network as landmarks. Findings: The simulation results show that the proposed protocol has the superior performance in packet delivery ratio, average hop counts among nodes, and communication overhead to previous works. Originality/value: This paper presents a distributed protocol to build a logical coordinate system based on hop counts to landmarks. © Emerald Group Publishing Limited.