### Abstract

We consider the limiting channel cutoff rate for memory-less phase-only modulation operating on the slow-fading Rician channel for large alphabet size, M. Previous work has considered evaluation of the cutoff rate, R_{0}, in bits/channel use, for multiple phase-shift keyed (MPSK) modulation with fixed M as a function of the channel parameters, as well as system implementation details such as whether or not interleaving/deinterleaving or channel state information (CSI) is used. Here we evaluate the limiting R_{0} when the restriction of a fixed alphabet size, M, is removed but the transmitted signal is restricted to utilize memoryless phase-only modulation. Results are provided under the assumptions of ideal interleaving/deinterleaving both with perfect and no CSI. In this case of no CSI we show that there exists a maximum useful signaling rate which depends only upon the ratio of specular-to-diffuse energy.

Original language | English (US) |
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Title of host publication | Proceedings of the 1993 IEEE International Symposium on Information Theory |

Publisher | Publ by IEEE |

Number of pages | 1 |

ISBN (Print) | 0780308786 |

State | Published - Jan 1 1993 |

Event | Proceedings of the 1993 IEEE International Symposium on Information Theory - San Antonio, TX, USA Duration: Jan 17 1993 → Jan 22 1993 |

### Publication series

Name | Proceedings of the 1993 IEEE International Symposium on Information Theory |
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### Other

Other | Proceedings of the 1993 IEEE International Symposium on Information Theory |
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City | San Antonio, TX, USA |

Period | 1/17/93 → 1/22/93 |

### ASJC Scopus subject areas

- Engineering(all)

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## Cite this

*Proceedings of the 1993 IEEE International Symposium on Information Theory*(Proceedings of the 1993 IEEE International Symposium on Information Theory). Publ by IEEE.