Conference proceeding
Power Amplifier Nonlinearity Effects on OFDM Subcarrier Transmit Beamforming
IEEE Wireless Communications and Networking Conference : WCNC, pp 1954-1959
01 Mar 2011
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The effect of a power amplifier nonlinearity on multi-antenna orthogonal frequency division multiplexing (OFDM) transmitters utilizing subcarrier beamforming is investigated. Theoretical analysis and simulation shows that such systems can exhibit significant performance degradation due to the power amplifier nonlinearity when there are channel state feedback errors. The SINR degradation under solely channel mismatch is shown to be significantly better than when power amplifier nonlinearity effects are included. The ultimate conclusion is that power amplifier nonlinearity effects should be considered when designing per subcarrier transmit beamformers.
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Details
- Title
- Power Amplifier Nonlinearity Effects on OFDM Subcarrier Transmit Beamforming
- Creators
- Gwanmo Ku - Drexel UniversityJohn MacLaren Walsh - Drexel University
- Publication Details
- IEEE Wireless Communications and Networking Conference : WCNC, pp 1954-1959
- Conference
- IEEE Conference on Wireless Communications and Networking (Cancun, Mexico, 28 Mar 2011–31 Mar 2011)
- Publisher
- IEEE
- Number of pages
- 6
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:000297160200335
- Scopus ID
- 2-s2.0-79959305464
- Other Identifier
- 991019170566704721
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- Web of Science research areas
- Telecommunications