898 search results - page 110 / 180 » Wireless underground sensor networks: Research challenges |
ITNG
2006
IEEE
14 years 2 months ago
2006
IEEE
Sensor networks have emerged as an interesting and important research area in the last few years. In order to construct a wireless sensor network, synchronization of base stations...
SIGMOD
2006
ACM
14 years 9 months ago
2006
ACM
Monitoring extreme values (MAX or MIN) is a fundamental problem in wireless sensor networks (and in general, complex dynamic systems). This problem presents very different algorit...
SASN
2003
ACM
14 years 2 months ago
2003
ACM
In this paper we present SECTOR, a set of mechanisms for the secure verification of the time of encounters between nodes in multi-hop wireless networks. This information can be u...
MOBIHOC
2002
ACM
14 years 8 months ago
2002
ACM
This paper investigates two fundamental characteristics of a wireless multihop network: its minimum node degree and its k?connectivity. Both topology attributes depend on the spat...
DSD
2007
IEEE
14 years 3 months ago
2007
IEEE
Abstract—Localization is one of the most challenging and important issues in wireless sensor networks (WSNs), especially if cost-effective approaches are demanded. In this paper,...