0000000000421975

AUTHOR

Songpu Ai

showing 2 related works from this author

Channel aggregation with guard-band in D-OFDM based CRNs: Modeling and performance evaluation

2016

Channel aggregation (CA) techniques can offer flexible channel allocation and improve overall system performance in multi-channel cognitive radio networks (CRNs). Although many CA techniques have been proposed and studied, the impact of guard-band on CA for channel access has not been addressed in-depth. In this paper, we study the guard-band allocation mechanisms in discontinuous-orthogonal frequency division multiplexing (D-OFDM) based CRNs, and investigate the impact of guard-band sharing on SU flows when CA is enabled. Continuous time Markov chain (CTMC) based models have been developed in order to investigate the stochastic behavior of PU and SU flows. Based on our mathematical analysi…

Channel allocation schemesComputer scienceOrthogonal frequency-division multiplexingDistributed computingBandwidth (signal processing)Guard bandMarkov process020206 networking & telecommunications02 engineering and technologyFrequency-division multiplexingsymbols.namesakeCognitive radio0202 electrical engineering electronic engineering information engineeringsymbols020201 artificial intelligence & image processingSimulationCommunication channel2016 IEEE Wireless Communications and Networking Conference
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Domestic Electricity Demand and Peak Predictions Considering Influence of Weather Parameters

2015

Masteroppgave informasjons- og kommunikasjonsteknologi - Universitetet i Agder, 2015 (Konfidensiell til/confidential until 01.07.2020)

IKT 590VDP::Technology: 500::Information and communication technology: 550
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