发明名称 |
DESIGN METHODOLOGY AND METHOD AND APPARATUS FOR SIGNALING WITH CAPACITY OPTIMIZED CONSTELLATIONS |
摘要 |
Communication systems having transmitter, includes a coder configured to receive user bits and output encoded bits at an expanded output encoded bit rate, a mapper configured to map encoded bits to symbols in a symbol constellation, a modulator configured to generate a signal for transmission via the communication channel using symbols generated by the mapper. In addition, the receiver includes a demodulator configured to demodulate the received signal via the communication channel, a demapper configured to estimate likelihoods from the demodulated signal, a decoder that is configured to estimate decoded bits from the likelihoods generated by the demapper. Furthermore, the symbol constellation is a capacity optimized geometrically spaced symbol constellation that provides a given capacity at a reduced signal-to-noise ratio compared to a signal constellation that maximizes dmin. |
申请公布号 |
EP2153561(A4) |
申请公布日期 |
2014.05.14 |
申请号 |
EP20080795885 |
申请日期 |
2008.06.05 |
申请人 |
BARSOUM, MAGED F.;JONES, CHRISTOPHER RICHARD |
发明人 |
BARSOUM, MAGED F.;JONES, CHRISTOPHER RICHARD |
分类号 |
H04J11/00;H04L1/00;H04L27/34 |
主分类号 |
H04J11/00 |
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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