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» Spectrum Allocation in Two-Tier Networks
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ICASSP
2011
IEEE
12 years 11 months ago
Dynamic spectrum management in DSL with asynchronous crosstalk
Dynamic spectrum management (DSM) aims to optimally allocate per-user transmit spectra so that the effect of multiuser interference (crosstalk) is minimized and the capabilities o...
Rodrigo B. Moraes, Paschalis Tsiaflakis, Marc Moon...
WOWMOM
2005
ACM
108views Multimedia» more  WOWMOM 2005»
14 years 1 months ago
Reducing Inter-Cluster TDMA Interference by Adaptive MAC Allocation in Sensor Networks
This paper presents a Self-Reorganizing Slot Allocation (SRSA) mechanism for TDMA based Medium Access Control (MAC) in multi-cluster sensor networks. The aim is to provide a MAC l...
Tao Wu, Subir K. Biswas
SIGMETRICS
2010
ACM
173views Hardware» more  SIGMETRICS 2010»
14 years 11 days ago
Channel fragmentation in dynamic spectrum access systems: a theoretical study
Dynamic Spectrum Access systems exploit temporarily available spectrum (‘white spaces’) and can spread transmissions over a number of non-contiguous sub-channels. Such methods...
Edward G. Coffman Jr., Philippe Robert, Florian Si...
PERCOM
2009
ACM
14 years 2 months ago
Markov Chain Existence and Hidden Markov Models in Spectrum Sensing
—The primary function of a cognitive radio is to detect idle frequencies or sub-bands, not used by the primary users (PUs), and allocate these frequencies to secondary users. The...
Chittabrata Ghosh, Carlos de M. Cordeiro, Dharma P...
MOBICOM
2010
ACM
13 years 7 months ago
The spaces between us: setting and maintaining boundaries in wireless spectrum access
Guardbands are designed to insulate transmissions on adjacent frequencies from mutual interference. As more devices in a given area are packed into orthogonal wireless channels, c...
Lei Yang, Ben Y. Zhao, Haitao Zheng