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» On the Optimality of the ARQ-DDF Protocol
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JSAC
2008
110views more  JSAC 2008»
15 years 6 months ago
Low complexity resource allocation with opportunistic feedback over downlink OFDMA networks
Abstract--Optimal tone allocation in downlink OFDMA networks is a non-convex NP-hard problem that requires extensive feedback for channel information. In this paper, two constantco...
Rajiv Agarwal, Vinay R. Majjigi, Zhu Han, Rath Van...
TMC
2011
137views more  TMC 2011»
15 years 1 months ago
Cognitive Medium Access: Exploration, Exploitation, and Competition
— This paper establishes the equivalence between cognitive medium access and the competitive multi-armed bandit problem. First, the scenario in which a single cognitive user wish...
Lifeng Lai, Hesham El Gamal, Hai Jiang, H. Vincent...
DCOSS
2011
Springer
14 years 6 months ago
Transmission Control Policy design for decentralized detection in sensor networks
—A Wireless Sensor Network (WSN) deployed for detection applications has the distinguishing feature that sensors cooperate to perform the detection task. Therefore, the decoupled...
Ashraf Tantawy, Xenofon D. Koutsoukos, Gautam Bisw...
IPPS
2008
IEEE
16 years 25 days ago
Scaling alltoall collective on multi-core systems
MPI Alltoall is one of the most communication intense collective operation used in many parallel applications. Recently, the supercomputing arena has witnessed phenomenal growth o...
Rahul Kumar, Amith R. Mamidala, Dhabaleswar K. Pan...
GLOBECOM
2007
IEEE
15 years 10 months ago
S-OSPF: A Traffic Engineering Solution for OSPF Based Best Effort Networks
Open Shortest Path First (OSPF) is one of the most widely used intra-domain routing protocol. It is well known that OSPF protocol does not provide flexibility in terms of packet fo...
Aditya Kumar Mishra, Anirudha Sahoo