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ICC
2009
IEEE
120views Communications» more  ICC 2009»
13 years 5 months ago
Achieving Exponential Diversity in Wireless Multihop Systems with Regenerative Relays
Abstract--We present and analyze two different power allocation strategies for considerably improving the average bit error rate (BER) performance of wireless multihop systems with...
Andreas Müller 0001, Joachim Speidel
GLOBECOM
2010
IEEE
13 years 5 months ago
Energy-Efficient Power Loading for a MIMO-SVD System and Its Performance in Flat Fading
In this paper we formulate a power loading problem for the spatial subchannels (parallel channels) of a single-carrier MIMO-SVD system. The power loading solution is designed to mi...
Raghavendra S. Prabhu, Babak Daneshrad
TWC
2010
13 years 2 months ago
Performance analysis and power allocation for M-QAM cooperative diversity systems
An adaptive regenerate and forward cooperative diversity (CD) system using quadrature amplitude modulation (QAM) for a two-user cooperation is proposed. The proposed system can ach...
Veluppillai Mahinthan, Jon W. Mark, Xuemin Shen
VTC
2010
IEEE
143views Communications» more  VTC 2010»
13 years 5 months ago
Partner Selection and Power Control for Asymmetrical Collaborative Networks
—We derive an adaptive power control method for a collaborative network utilizing partner selection that aims to minimize the frame error rate (FER). We model a decodeand-forward...
Weisi Guo, Ioannis Chatzigeorgiou, Ian J. Wassell,...
ICCV
2009
IEEE
1714views Computer Vision» more  ICCV 2009»
15 years 11 days ago
Power watersheds: a new image segmentation framework extending graph cuts, random walker and optimal spanning forest
In this work, we extend a common framework for seeded image segmentation that includes the graph cuts, ran- dom walker, and shortest path optimization algorithms. Viewing an ima...
Camille Couprie, Leo Grady, Laurent Najman, Hugues...