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VTC
2008
IEEE
185views Communications» more  VTC 2008»
15 years 4 months ago
Opportunistic Spectrum Access for Energy-Constrained Cognitive Radios
This paper considers a scenario in which a secondary user makes opportunistic use of a channel allocated to some primary network. The primary network operates in a time-slotted ma...
Anh Tuan Hoang, Ying-Chang Liang, David Tung Chong...
GLOBECOM
2007
IEEE
15 years 4 months ago
Implementing an Experimental Cognitive Radio System for DySPAN
— Motorola Labs implemented an experimental cognitive radio system for use at the Dynamic Spectrum Access Networks (DySPAN) Symposium 2007. To exercise a practical communication ...
David Taubenheim, Wayne Chiou, Neiyer S. Correal, ...
GLOBECOM
2007
IEEE
15 years 4 months ago
Stability Emphasizing Cross-Layer Optimization of Transmit Power Allocation in Distributed Wireless Networks
Abstract— This paper theoretically analyzes cross-layer optimized design of transmit power allocation in distributed interference-limited wireless networks with asynchronously ac...
Stepán Kucera, Sonia Aïssa, Susumu Yos...
GLOBECOM
2007
IEEE
15 years 4 months ago
Reduced Complexity Sphere Decoding for Square QAM via a New Lattice Representation
— Sphere decoding (SD) is a low complexity maximum likelihood (ML) detection algorithm, which has been adapted for different linear channels in digital communications. The comple...
Luay Azzam, Ender Ayanoglu
ICC
2007
IEEE
119views Communications» more  ICC 2007»
15 years 4 months ago
A Convex Quadratic SDMA Grouping Algorithm Based on Spatial Correlation
Abstract— Space Division Multiple Access (SDMA) is a promising solution to improve the spectral efficiency of future mobile radio systems. However, finding the group of MSs tha...
Tarcisio F. Maciel, Anja Klein