Multimedia transmission in MC-CDMA using adaptive subcarrier power allocation and CFO compensation. Issue 2 (1st February 2018)
- Record Type:
- Journal Article
- Title:
- Multimedia transmission in MC-CDMA using adaptive subcarrier power allocation and CFO compensation. Issue 2 (1st February 2018)
- Main Title:
- Multimedia transmission in MC-CDMA using adaptive subcarrier power allocation and CFO compensation
- Authors:
- Chitra, S.
Kumaratharan, N. - Abstract:
- ABSTRACT: Multicarrier code division multiple access (MC-CDMA) system is one of the most effective techniques in fourth-generation (4G) wireless technology, due to its high data rate, high spectral efficiency and resistance to multipath fading. However, MC-CDMA systems are greatly deteriorated by carrier frequency offset (CFO) which is due to Doppler shift and oscillator instabilities. It leads to loss of orthogonality among the subcarriers and causes intercarrier interference (ICI). Water filling algorithm (WFA) is an efficient resource allocation algorithm to solve the power utilisation problems among the subcarriers in time-dispersive channels. The conventional WFA fails to consider the effect of CFO. To perform subcarrier power allocation with reduced CFO and to improve the capacity of MC-CDMA system, residual CFO compensated adaptive subcarrier power allocation algorithm is proposed in this paper. The proposed technique allocates power only to subcarriers with high channel to noise power ratio. The performance of the proposed method is evaluated using random binary data and image as source inputs. Simulation results depict that the bit error rate performance and ICI reduction capability of the proposed modified WFA offered superior performance in both power allocation and image compression for high-quality multimedia transmission in the presence of CFO and imperfect channel state information conditions.
- Is Part Of:
- International journal of electronics. Volume 105:Issue 2(2018)
- Journal:
- International journal of electronics
- Issue:
- Volume 105:Issue 2(2018)
- Issue Display:
- Volume 105, Issue 2 (2018)
- Year:
- 2018
- Volume:
- 105
- Issue:
- 2
- Issue Sort Value:
- 2018-0105-0002-0000
- Page Start:
- 289
- Page End:
- 302
- Publication Date:
- 2018-02-01
- Subjects:
- CSI -- ICI -- MC-CDMA -- MWFA -- residual CFO compensated MWFA
Electronics -- Periodicals
Electronic control -- Periodicals
621.381 - Journal URLs:
- http://www.tandfonline.com/toc/tetn20/current ↗
http://www.tandfonline.com/ ↗ - DOI:
- 10.1080/00207217.2017.1357201 ↗
- Languages:
- English
- ISSNs:
- 0020-7217
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 4542.232000
British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 5329.xml