Title :
Comparison of three access protocols for VSAT networks
Author :
Jolfaei, M. ; Jolfaei, M. Aghadavoodi ; Quernheim, U.
Author_Institution :
Lehrstuhl fuer Inf. IV, RWTH Aachen, Germany
Abstract :
The performance of three access protocols for data communications on very small aperture terminal (VSAT) satellite networks under erroneous inbound channel is compared. Selective repeat and go-back-N automatic repeat request strategies are used for correcting erroneous packets. Single channel per carrier-sequential access (SCPC-SA) and adaptive assignment time division multiple access (AA-TDMA) combine random and demand assignment access; adaptive priority demand assignment (APODA) is a variant of CPODA. A mixed load of interactive traffic and file transfer is assumed. The protocols are modeled by queuing networks. Results show that SCPC-SA and AA-TDMA are favorable if the load is low. A pure reservation protocol is preferable for high loads and guarantees an acceptable delay of interactive messages
Keywords :
VSAT networks; access protocols; adaptive systems; automatic repeat request; delays; error correction; queueing theory; satellite communication; telecommunication traffic; AA-TDMA; APODA; SCPC-SA; VSAT networks; access protocols; adaptive assignment time division multiple access; adaptive priority demand assignment; automatic repeat request strategies; delay; erroneous inbound channel; file transfer; interactive traffic; performance; pure reservation protocol; queuing networks; very small aperture terminal; Access protocols; Artificial satellites; Automatic repeat request; Credit cards; Data communication; Delay; Electronic mail; Satellite broadcasting; Time division multiple access; Time division multiplexing;
Conference_Titel :
Communications, 1993. ICC '93 Geneva. Technical Program, Conference Record, IEEE International Conference on
Conference_Location :
Geneva
Print_ISBN :
0-7803-0950-2
DOI :
10.1109/ICC.1993.397528
