| タイトル | Methodology and method and apparatus for signaling with capacity optimized constellations |
| 本文（外部サイト） | http://hdl.handle.net/2060/20110015381 |
| 著者（英） | Barsoum, Maged F.; Jones, Christopher R. |
| 著者所属（英） | Constellation Designs, Inc. |
| 発行日 | 2011-07-12 |
| 言語 | eng |
| 内容記述 | 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 d.sub.min. |
| NASA分類 | Communications and Radar |
| 権利 | No Copyright |
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