Integrated Power and Subcarrierassignmentby Cooperative Communications in LTE-A Networks
R.RajaKumar1, R.Pandian2, P.Indumathi3, Jyotirmayee Subudhi4

1Dr. R. Raja Kumar, Department of Mathematics, Sathyabama Institute of Science and Technology, Chennai, India.
2Dr. R.Pandian, Department of Electronics and Instrumentation Engineering, SathyabamaInstitute of Science and Technology, Chennai, India.
3Dr. P. Indumathi, Department of Electronics Engineering, MIT Campus Anna University Chennai, India.
4Jyotirmayee Subudhi, Department of Electronics Engineering, MIT Campus Anna University Chennai, India.
Manuscript received on July 12, 2019. | Revised Manuscript received on August 21, 2019. | Manuscript published on August 30, 2019. | PP: 4744-4748 | Volume-8 Issue-6, August 2019. | Retrieval Number: E7248068519/2019©BEIESP | DOI: 10.35940/ijeat.E7248.088619
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Abstract: The major enhancement of Long Term Evolution (LTE), namely, LTE-Advanced aims at larger capacity for the users. The specifications of LTE-A include, Downlink(DL) at 3Gbps, Uplink(UL) at 1.5 Gbps spectral efficiency at 30 bps/Hz and Type II relay station. The relay station and the e Node B (eNB) make use of the same In-Band channel to maximize the available resources. This paper deals with optimal allocation of the Multicarrier scheme, namely, OFDM’s power and subcarrier to maximize DL communication efficiency of multiuser. Sub carriers are assigned to users having the highest channel quality and using water-filling strategy, the power is allocated. This allocation scheme is assessed against existing schemes and found to be effective. Thus our work aims at introducing power and resource allocation schemes in a LTE-A network.
Keywords: LTE-A, Cooperative communication, Spectrum efficiency, Relay channel, Water-filling algorithm, Resource allocation, User fairness.