EHF Satellite Communications on the Move: Experimental Results
Abstract
This report summarizes the results of experiments conducted with an EHF SATCOM on the move (SOTM) terminal developed to work with LDR MILSTAR. The experiments were designed to measure characteristics of the EHF SOTM propagation channel, yield insight into the performance of an automatic repeat request error control protocol, and assess the pointing performance of the system's antenna positioner. With respect to the propagation experiments, the report contains statistical analyses of the data that yield probability density models for the received signal power, fade and nonfade duration distributions, and estimates of level crossing rates. Discrete models for the EHF SOTM channel are also explored and compared to the measured data. Results from the protocol experiments include packet error rate, throughput efficiency and packet latency as a function of protocol parameters (e.g., packet length) and channel conditions. As with the propagation experiments, the report contains analyses of the antenna pointing data recorded during the positioner experiments that result in statistical models for the LOS error under various terrain conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 15, 2003
- Accession Number
- ADA417222
Entities
People
- J. B. Schodorf
Organizations
- Massachusetts Institute of Technology