Adaptive data rate control CDMA ALOHA for shadowed land mobile satellite and HAPS channels

Tetsushi Ikegami, Masato Ohta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Effects of overhead on the throughput and delay performance of mobile satellite communications using the Slotted CDMA ALOHA systems are examined. Computer simulation is carried out using measured propagation data, and throughput performances for the different propagation characteristics are compared. The packet delay performance is evaluated along with the altitude of satellite when ARQ (automatic repeat request) scheme is introduced for error control. Also proposed are the Adaptive Data Rate Slotted CDMA ALOHA. This method is that the technique that data rate is changed every packet by the situation of the propagation path is applied to the Slotted CDMA ALOHA. The improving throughput, delay time and data rate are shown in case of high traffic.

Original languageEnglish
Title of host publication21st International Communications Satellite Systems Conference and Exhibit
Publication statusPublished - 1 Dec 2003
Event21st International Communications Satellite Systems Conference and Exhibit, ICSSC 2003 - Yokohama, Japan
Duration: 15 Apr 200319 Apr 2003

Publication series

Name21st International Communications Satellite Systems Conference and Exhibit

Conference

Conference21st International Communications Satellite Systems Conference and Exhibit, ICSSC 2003
CountryJapan
CityYokohama
Period15/04/0319/04/03

Keywords

  • ARQ
  • Adaptive modulation technique
  • Mobile satellite communication
  • SPF/LEO
  • Slotted CDMA ALOHA

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  • Cite this

    Ikegami, T., & Ohta, M. (2003). Adaptive data rate control CDMA ALOHA for shadowed land mobile satellite and HAPS channels. In 21st International Communications Satellite Systems Conference and Exhibit (21st International Communications Satellite Systems Conference and Exhibit).