发明名称 |
JOINT PAPR REDUCTION AND RATE ADAPTIVE ULTRASONIC OFDM PHYSICAL LAYER FOR HIGH DATA RATE THROUGH-METAL COMMUNICATIONS |
摘要 |
A link adaptive orthogonal frequency-division multiplexed (OFDM) ultrasonic physical layer is provided that is capable of high data rate communication through metallic structures. The use of an adaptive OFDM subcarrier-based modulation technique mitigates the effects of severe frequency selective fading of the through-metal communication link and improves spectral efficiency by exploiting the slow-varying nature of the channel. To address the potential ill effects of peak-to-average power ratio (PAPR) and to make more efficient use of the power amplifiers in the system, the invention modifies and implements a symbol rotation and inversion-based PAPR reduction algorithm in the adaptive OFDM framework. This joint adaptive physical layer is capable of increasing data rates by roughly 220% in comparison to conventional narrowband techniques at average transmit powers of roughly 7 mW while constrained to a desired BER. |
申请公布号 |
EP2715950(A4) |
申请公布日期 |
2015.06.17 |
申请号 |
EP20120789465 |
申请日期 |
2012.05.25 |
申请人 |
DREXEL UNIVERSITY |
发明人 |
SOSA, GUILLERMO;PRIMERANO, RICHARD;WANUGA, KEVIN;BIELINSKI, MAGDALENA;DANDEKAR, KAPIL;KAM, MOSHE |
分类号 |
H04B5/00;H04B11/00;H04L1/00;H04L5/00;H04L27/01;H04L27/26 |
主分类号 |
H04B5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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