Higher power relay nodes can be used as cluster heads in two-tiered sensor networks to
achieve improved network lifetime. The relay nodes may form a network among themselves …

RSSI 测距技术在实际应用环境中, 由于多径, 绕射, 障碍物等因素, 无线电传播路径损耗使得定位
过程中产生距离误差. 通过对三维空间定位过程中产生距离误差区域进行分析, 提出了基于RSSI …

The placement of base stations in wireless sensor networks affects the coverage of sensor
nodes, the tolerance against faults or attacks, the energy consumption and the congestion …

Recent advances in computing and sensor technologies have facilitated the emergence of
increasingly sophisticated and complex cyber-physical systems and wireless sensor …

Networks-on-chip will serve as the central integration platform in future complex systems-on-
chip (SoC) designs, composed of a large number of heterogeneous processing resources …

Nodes in sensor networks are often prone to failure, particularly when deployed in hostile
territories, where chances of damage/destruction are significantly higher. There is also the …

Increasingly sophisticated, complex, energy-efficient cyber-physical systems, wireless
sensor networks are emerging, facilitated by recent advances in computing, sensor …

In this paper we propose and evaluate algorithms for placement of routers in a wireless
sensor network. There are two major requirements on router placement. First, a placement …

In hierarchical sensor networks using relay nodes, sensor nodes are arranged in clusters
and higher powered relay nodes can be used as cluster heads. The lifetime of such a …

This paper considers a two-tier hierarchical heterogeneous wireless sensor network using
the concept of clustering. The network has two type of nodes: regular sensor nodes …