### Resumé

Originalsprog | Engelsk |
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Publikationsdato | jun. 2017 |

Antal sider | 12 |

Status | Udgivet - jun. 2017 |

Begivenhed | IRACON - 4th technical meeting - Lund, Sverige Varighed: 29 maj 2017 → 31 maj 2017 |

### Konference

Konference | IRACON - 4th technical meeting |
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Land | Sverige |

By | Lund |

Periode | 29/05/2017 → 31/05/2017 |

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### Citer dette

*A Model of Path Arrival Rate for In-Room Radio Channels with Directive Antennas: TD(17)04047*. Afhandling præsenteret på IRACON - 4th technical meeting, Lund, Sverige.

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**A Model of Path Arrival Rate for In-Room Radio Channels with Directive Antennas : TD(17)04047.** / Pedersen, Troels.

Publikation: Konferencebidrag uden forlag/tidsskrift › Paper uden forlag/tidsskrift › Forskning

TY - CONF

T1 - A Model of Path Arrival Rate for In-Room Radio Channels with Directive Antennas

T2 - TD(17)04047

AU - Pedersen, Troels

PY - 2017/6

Y1 - 2017/6

N2 - We analyze the path arrival rate for an inroom radio channel with directive antennas. The impulse response of this channel exhibits a transition from early separate components followed by a diffuse reverberation tail. Under the assumption that the transmitter’s (or receiver’s) position and orientation are picked uniformly at random we derive an exact expression of the mean arrival rate for a rectangular room predicted by the mirror source theory. The rate is quadratic in delay, inversely proportional to the room volume, and proportional to the product of beam coverage fractions of the transmitter and receiver antennas. Making use of the exact formula, we characterize the onset of the diffuse tail by defining a “mixing time” as the point in time where the arrival rate exceeds one component per transmit pulse duration. We also give an approximation for the powerdelay spectrum. It turns out that the power-delay spectrum is unaffected by the antenna directivity. However, Monte Carlo simulations show that antenna directivity does indeed play an important role for the distribution of instantaneous mean delay and rms delay spread.

AB - We analyze the path arrival rate for an inroom radio channel with directive antennas. The impulse response of this channel exhibits a transition from early separate components followed by a diffuse reverberation tail. Under the assumption that the transmitter’s (or receiver’s) position and orientation are picked uniformly at random we derive an exact expression of the mean arrival rate for a rectangular room predicted by the mirror source theory. The rate is quadratic in delay, inversely proportional to the room volume, and proportional to the product of beam coverage fractions of the transmitter and receiver antennas. Making use of the exact formula, we characterize the onset of the diffuse tail by defining a “mixing time” as the point in time where the arrival rate exceeds one component per transmit pulse duration. We also give an approximation for the powerdelay spectrum. It turns out that the power-delay spectrum is unaffected by the antenna directivity. However, Monte Carlo simulations show that antenna directivity does indeed play an important role for the distribution of instantaneous mean delay and rms delay spread.

UR - http://www.iracon.org/temporary-documents/4th-mcm-lund-sweden-may-29-31-2017/

M3 - Paper without publisher/journal

ER -