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TWC
2010
7 years 10 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
ICC
2009
IEEE
135views Communications» more  ICC 2009»
8 years 1 months ago
Optimal Power Allocation for Cognitive Radio Under Primary User's Outage Loss Constraint
In this paper, we consider a secondary link sharing the spectrum with a primary link in a fading cognitive radio (CR) network. Instead of applying the conventional interference pow...
Xin Kang, Rui Zhang, Ying-Chang Liang, Hari Krishn...
TWC
2008
129views more  TWC 2008»
8 years 3 months ago
Lifetime maximization for amplify-and-forward cooperative networks
Power allocation strategies are devised to maximize the network lifetime of amplify-and-forward (AF) cooperative networks in this work. We consider the scenario where one source an...
Wan-Jen Huang, Yao-Win Peter Hong, C. C. Jay Kuo
VTC
2007
IEEE
8 years 9 months ago
Discrete Power Allocation for Lifetime Maximization in Cooperative Networks
Abstract— Discrete power allocation strategies for amplifyand-forward cooperative networks are proposed based on selective relaying methods. The goal of power allocation is to ma...
Wan-Jen Huang, Yao-Win Hong, C. C. Jay Kuo
ICC
2007
IEEE
8 years 9 months ago
Optimizing Power Allocation and Matching of Cooperative Diversity Systems
— In this paper, we study how to appropriately match users for two-user cooperative diversity systems that deploy optimal power allocation for an amplify and forward or a regener...
Veluppillai Mahinthan, Lin Cai, Jon W. Mark, Xuemi...
GLOBECOM
2008
IEEE
8 years 10 months ago
Near-Optimum Power Allocation for Outage Restricted Distributed MIMO Multi-Hop Networks
Abstract—The throughput of multi-hop communication systems can significantly be increased by the application of MIMO concepts. To utilize the physical resources in an efficient...
Dirk Wübben, Yidong Lang
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