Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 25 for “"Cooperative system"”.
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Sensor Fusion for Field Robot Localization
… to promote parallel platform development and cooperative system development.
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Transceiver design for wireless energy harvesting cooperative networks
… RF energy harvesting technique is studied in the cooperative wireless network, and different optimization studies are investigated. First, an energy-efficient optimization is considered in the cooperative system with the time switching relaying and power splitting relaying protocols. Then, a …
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Proposta para criação de uma rede de informação econômica
… libraries and documentation centers as a cooperative system on an institucional leval. Data obtained through the PNPE-Register of Teachers and Researchs were collected by INPES/IPEA, in 1976 compative analysis of the Pos-Graduate Centers of Economics and of the Research Institution …
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Competition between species can drive public-goods cooperation within a species
Costly cooperative strategies are vulnerable to exploitation by cheats. Microbial studies have suggested that cooperation can be maintained in nature by mechanisms such as reciprocity, spatial structure and multi-level selection. So far, however, almost all laboratory experiments aimed at …
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Cooperative multicast in wireless networks
… same region are viewed as crossed wires. Many systems overcome these limitations by either speaking more loudly, or subdividing the space to mimic the effect of a separate wire between each pair. This thesis will construct and test the value of a cooperative system where the routing and …
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Low-complexity near-optimum detection techniques for non-cooperative and cooperative MIMO systems
… and complexity in the context of uncoded non-cooperative Multiple-Input Multiple-Output (MIMO) systems using coherent detection. Particular attention is devoted to Spatial Division Multiple Accessing (SDMA) aided Orthogonal Frequency Division Multiplexing (OFDM) systems, which are considered …
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Exploring multispecies evolutionary dynamics using model microbial ecosystems
… species. We developed experimental microbial ecosystems with which we can start to answer some of the fundamental questions regarding evolution in complex ecosystems. We first tested how the evolution of cooperation within a species can be affected by the presence of competitor species in an …
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Fractured elites : the politics of economic crisis in Mexico
… or cliques, within the ruling party abided by a "cooperative" system. The grupo whose leader won the internal contest for presidential nomination, hence automatically won the election, would do better, but losing grupos retained important posts. Such assurance of political survival allowed elites …
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Commitment-Based Multiagent Decision Making
<p>In a cooperative system, multiple dynamic entities work together and share their resources to achieve common goals, while simultaneously pursuing their individual goals. In real-world business environments, participants interact by exchanging goods and providing services for each other. In …
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Ligand Cooperative Iridium PCP Complexes for Small Molecule Activation
… which can be used in favorable metal-ligand cooperative processes. This design feature was used for the activation of N2O, where a series of “iridaepoxide” complexes were made through oxygen atom transfer to the iridium-carbon bond with the release of N2 gas. The formal hydrogenation of N2O …
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Power allocation for cooperative wireless networks
… users to create a distributed multi-antenna system that is known as a cooperative communication system. Our investigation includes the modeling, characterization and optimization of such a system under realistic scenarios. We derive new performance expressions utilizing feasible input …
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Enhancing spectrum utilization through cooperation and cognition in wireless systems
… This dissertation presents a cognitive and cooperative wireless architecture that significantly enhances spectrum utilization. Specifically, it introduces four new systems that embody a cross-layer design for cognition and cooperation. The first system, SWIFT, is a cognitive cross technology …
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El agua no se vende, el agua se defiende : water rights transfers and community irrigation in New Mexico's acequias
… across New Mexico irrigate with acequias, a system of cooperative, gravity-fed ditches introduced in Spanish colonial times that remains well adapted to managing scarce water in a dry climate. While the acequia system has proven to be a self-sustaining means of managing common pool resources, …
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An alternative approach for low income housing in Algeria : housing cooperative
… of implementing this type of approach. The system considered is a housing cooperative as it offers a major instrument to organize and rationalize the participatory process among the low-income groups. The proposed cooperative system will be discussed in the light of the Algerian context as …
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Non-orthogonal random waveform based multiuser communications
… may be exploited. These are applied to cellular systems in Chapter 3, to cooperative systems in Chapter 4 and they are combined with a practical Hybrid Automatic Repeat reQuest (HARQ) system in Chapter 5.<br/>In the cellular system scenario presented in Chapter 3, we discuss three design …
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A Test of the Behavioral Model of Health Services Use on Non-Emergent Emergency Department Use
… of Health Statewide Planning and Research Cooperative System outpatient limited dataset. Overall, need for health care and predisposing factors were found to be most influential in driving ED use. This is contradictory to the original hypothesis stating that enabling resources and need …
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Distributed Turbo Product Coding Techniques Over Cooperative Communication Systems
In this dissertation, we propose a coded cooperative communications framework based on Distributed Turbo Product Code (DTPC). The system uses linear block Extended Bose-Chaudhuri-Hochquenghem (EBCH) codes as component codes. The source broadcasts the EBCH coded frames to the destination and nearby …
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The Korean hub strategy
… in the Europe with solid regional economic cooperative system and strategic flexibility, while Singapore has had much attention to be the leading regional business hub in the Southeast Asia with strong government driven policy and the attractive national character - openness. With favorable …
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Performance Evaluation and Improvement of Wireless Amplify-and-Forward Cooperative-Based Systems under Nodes Mobility and Imperfect CSI Estimation Impacts
Cooperative communication techniques have been introduced in wireless networks to achieve spacial diversity-gain via the readiness of multiple users (via relays) to assist a source forwarding its data to a final destination. Cooperative communication techniques have shown their capability in …
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The evolution of exploitation through mimicry
… behavioural strategy for exploiting social systems. Detection of mimicry may consequently have evolved as a counterstrategy, creating a competitive co-evolutionary relationship between signaller and receiver, potentially driving signal complexity and diversity. This perspective relies on …
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