Invention Grant
- Patent Title: System and method for reducing peak-to-average power ratio for multi-carrier communication systems
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Application No.: US13351738Application Date: 2012-01-17
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Publication No.: US08442137B2Publication Date: 2013-05-14
- Inventor: Christopher Douglas Moffatt , Ray J. Kolar , Charles W. Richards
- Applicant: Christopher Douglas Moffatt , Ray J. Kolar , Charles W. Richards
- Applicant Address: US FL Melbourne
- Assignee: Harris Corporation
- Current Assignee: Harris Corporation
- Current Assignee Address: US FL Melbourne
- Agency: Duane Morris LLP
- Main IPC: H04L27/28
- IPC: H04L27/28

Abstract:
The present disclosure presents a predictive signal producing method that effectively levels transmitter output power in a multi-carrier communication system and results in approaching amplifier performance normally associated with constant carrier waveforms. Embodiments of the disclosed solution offers >10 dB reduction in the peak-to-average power required to support the transmission of, for example, orthogonal frequency division modulation (“OFDM”) modulation techniques. Embodiments of the novel system and method maximize peak-to-average power ratio (“PAPR”) reduction with selective mapping and soft clipping, which may include filtering, combined. This novel approach also minimizes overhead, bit error rate, retransmissions, and increases latency as well as implementing processing cycles with a number of iterations. The disclosed system and method improves the total system DC power efficiency and provides an optimal solution for PAPR reduction in multi-carrier communication systems such as, for example, OFDM.
Public/Granted literature
- US20120114074A1 System and Method for Reducing Peak-To-Average Power Ratio For Multi-Carrier Communication Systems Public/Granted day:2012-05-10
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