发明名称 |
Joint source-channel coding for multicarrier modulation |
摘要 |
Methods and systems employing combined source-channel coding for multi-carrier modulation (MCM). In some embodiments, a described method comprises: estimating channel gain to noise ratio (CGNR) as a function of frequency bin; determining MCM parameters that minimize distortion of one or more telemetry signals; generating a communications signal using the MCM parameters, and transmitting the communications signal via a communications channel. The MCM parameters may be determined by minimizing a telemetry signal distortion measure subject to CGNR and a transmit power constraint. The MCM parameters may further account for differing fidelity requirements when multiple telemetry signals are being transmitted.
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申请公布号 |
US2006055556(A1) |
申请公布日期 |
2006.03.16 |
申请号 |
US20050093120 |
申请日期 |
2005.03.29 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
MEMARZADEH MAHSA;GARDNER WALLACE R.;JOHNSON DON H. |
分类号 |
H04Q9/00 |
主分类号 |
H04Q9/00 |
代理机构 |
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地址 |
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