Title :
Performance of TDMA and demand assignment multiple access protocols in mobile radio channels
Author_Institution :
DLR-German Aerosp. Res., Wessling, Germany
Abstract :
Two multiple-access protocols for mobile data services on error-prone transmission channels are studied. TDMA (time division multiple access) and a class of demand assignment techniques (DAMA) are compared using the same user and channel models. TDMA is analyzed by a straight-forward computation. and for the demand assignment protocols a model consisting of two embedded Markov chains is developed. Channel utilization and packet-delay are evaluated. It is shown that the advantages of DAMA in error-free channels may diminish with increasing error rates
Keywords :
Markov processes; data communication systems; mobile radio systems; packet switching; telecommunication channels; time division multiple access; DAMA; TDMA; channel models; channel utilisation; demand assignment multiple access protocols; embedded Markov chains; error rates; error-free channels; error-prone transmission channels; mobile data services; mobile radio channels; packet-delay; performance; time division multiple access; user models; Access protocols; Delay; Error correction; Error correction codes; Land mobile radio; Modulation coding; Performance analysis; System performance; Time division multiple access;
Conference_Titel :
Telecommunications Symposium, 1990. ITS '90 Symposium Record., SBT/IEEE International
Conference_Location :
Rio de Janeiro
DOI :
10.1109/ITS.1990.175637
