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ICDCS
2007
IEEE
14 years 2 months ago
Two-Tier Multiple Query Optimization for Sensor Networks
When there are multiple queries posed to the resourceconstrained wireless sensor network, it is critical to process them efficiently. In this paper, we propose a Two-Tier Multipl...
Shili Xiang, Hock-Beng Lim, Kian-Lee Tan, Yongluan...
ICC
2007
IEEE
153views Communications» more  ICC 2007»
14 years 2 months ago
A Walking Beacon-Assisted Localization in Wireless Sensor Networks
—The localization of the sensor node is a fundamental problem in sensor networks and can be implemented using powerful and expensive beacons. Beacons, the fewer the better, can a...
Bin Xiao, Hekang Chen, Shuigeng Zhou
PIMRC
2010
IEEE
13 years 5 months ago
Optimal beamforming in cognitive two-way relay networks
We consider a cognitive two-way relay network which consists of two transceivers (primary users) and multiple cognitive terminals. The two transceivers transmit their data toward t...
Ardalan Alizadeh, Seyed Mohammad-Sajad Sadough, Na...
IEEECSA
2009
13 years 5 months ago
A Fine-Grained Localization Scheme Using a Mobile Beacon Node for Wireless Sensor Networks
In this paper, we present a fine-grained localization algorithm for wireless sensor networks using a mobile beacon node. The algorithm is based on distance measurement using RSSI. ...
Kezhong Liu, Ji Xiong, Yongqiang Cui, Dong Han
INFOCOM
2007
IEEE
14 years 2 months ago
Point-Casting Service in Wireless Networks
— The broadcast nature of existing wireless LANs can produce excessive radio coverage which is often undesirable for applications like wireless IPTV or location-based service. To...
Zhengrong Ji, Maneesh Varshney, Junlan Zhou, Rajiv...