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Selection Criteria and Distributed Selection Algorithms in Wireless Cellular and Sensor Networks. Neelesh B. Mehta ECE Department, IISc. New Project Proposal. Outline. Research problem and applications Proposed approach Author ’ s previous work in this area Project milestones
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Selection Criteria and Distributed Selection Algorithms in Wireless Cellular and Sensor Networks Neelesh B. Mehta ECE Department, IISc New Project Proposal
Outline • Research problem and applications • Proposed approach • Author’s previous work in this area • Project milestones • Budget estimates
Research Problem Background • Selection arises naturally in several wireless systems • Cooperative communications • Cellular communications • Two key questions in selection • Whom to select? • Selection criterion depends on system • How to select? • Timer algorithm • Fast, scalable, and distributed r1 t r2 s r3 h1 h2 h3 h4
Proposed Approach • Selection algorithm: Find optimal mapping • Maximize overall throughput for rate-adaptive systems • Minimize average BER for non-adaptive systems • Selection metric • Determine how important it is to account for channel and battery states • Evaluate ‘dumb’ criteria • Propose new smart criteria Optimal mapping will look like Timer Metric
Previous Related Work By Author • On selection criteria • BhargavMedepally and Neelesh B. Mehta, “Voluntary Cooperative Energy Harvesting Relay Nodes: Analysis and Benefits”, IEEE Intl. Conf. on Communications (ICC), South Africa, May 2010. • On selection algorithms • AnandaTheertha, Neelesh B. Mehta, and Virag Shah, “On Optimal Timer-Based Distributed Selection For Rate-Adaptive Multi-user Diversity Systems”, National Conf. on Communications, Jan. 2010 [Received best paper award] • Virag Shah, Neelesh B. Mehta, and Raymond Yim, “Optimal Timer Based Selection Schemes”, To appear in IEEE Trans. on Communications, June 2010.
Impact of Proposed Research • Customized distributed selection schemes for: • Cooperative systems to find best relay • Mobile multi-hop networks • Vehicular ad hoc networks • Selection and selection criteria for energy harvesting sensor networks
Project Milestones First year • Develop timer-based selection method to select best node • Customize timer scheme to handle rate adaptive systems and simpler non-adaptive systems • Propose and evaluate performance of selection criteria for energy harvesting sensor networks Second year • Extend selection criteria to account for battery state of energy harvesting sensor node also • Develop selection algorithms to select multiple nodes
Budget Estimate Total duration: 2 years