发明名称 |
APPARATUS AND METHOD FOR INCREASED DATA RATES IN UNDERWATER COMMUNICATIONS USING ORBITAL ANGULAR MOMENTUM |
摘要 |
A system for providing underwater communication using orbital angular momentum (OAM) includes a transmitter that processes input data to be transmitted using pre-coding information based on current transmission channel conditions to maximize data rate based on channel conditions. A receiver receives a transmitted multiplexed OAM optical signal and analyzes the received signal for channel state information. The channel state information is used to determine a set of pre-coding values that allow the transmitter to pre-code the input data to maximize the data rate based on current channel conditions. The pre-coding values are mapped to a codebook entry which identifies the pre-coding values. The codebook entry is transmitted from the receiver to the transmitter. The transmitter uses the received codebook entry to identify pre-coding values used to process subsequent input data to be transmitted in order to enhance data rate across the transmit channel. |
申请公布号 |
WO2016164146(A3) |
申请公布日期 |
2016.11.10 |
申请号 |
WO2016US22473 |
申请日期 |
2016.03.15 |
申请人 |
LOCKHEED MARTIN CORPORATION |
发明人 |
LUDDY, Michael J.;WINTERS, Jack H. |
分类号 |
H04J14/00;H04J11/00 |
主分类号 |
H04J14/00 |
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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