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PERCOM
2008
ACM
14 years 8 months ago
An Algorithm for Distributed Beacon Selection
This paper investigates wireless sensor networks where a small percentage of nodes are assumed to know their location a priori. These reference nodes enable absolute localization ...
Dominik Lieckfeldt, Jiaxi You, Dirk Timmermann
INFOCOM
2009
IEEE
14 years 3 months ago
Distributed Power Allocation Algorithm for Spectrum Sharing Cognitive Radio Networks with QoS Guarantee
—In this paper we study the distributed multi-channel power allocation for spectrum sharing cognitive radio networks with QoS guarantee. We formulate this problem as a noncoopera...
Yuan Wu, Danny H. K. Tsang
PERVASIVE
2006
Springer
13 years 8 months ago
Collaborative Localization: Enhancing WiFi-Based Position Estimation with Neighborhood Links in Clusters
Abstract. Location-aware services can benefit from accurate and reliable indoor location tracking. The widespread adoption of 802.11x wireless LAN as the network infrastructure cre...
Li-Wei Chan, Ji-Rung Chiang, Yi-Chao Chen, Chia-na...
CORR
2008
Springer
189views Education» more  CORR 2008»
13 years 8 months ago
Algorithms for Dynamic Spectrum Access with Learning for Cognitive Radio
We study the problem of dynamic spectrum sensing and access in cognitive radio systems as a partially observed Markov decision process (POMDP). A group of cognitive users cooperati...
Jayakrishnan Unnikrishnan, Venugopal V. Veeravalli
JUCS
2006
117views more  JUCS 2006»
13 years 8 months ago
Resource Efficient Maintenance of Wireless Network Topologies
Abstract: Multiple hop routing in mobile ad hoc networks can minimize energy consumption and increase data throughput. Yet, the problem of radio interferences remain. However if th...
Tamás Lukovszki, Christian Schindelhauer, K...