Title :
Performance evaluation of PRMA with priorities for wireless ATM
Author :
Martínez, L. García ; Jafarian, B. ; Aghvami, H.
Author_Institution :
ETSI Telecomunicacion, Univ. Politecnica de Madrid, Spain
Abstract :
A backoff scheme for multiclass users is described and simulated. It combines the original packet reservation multiple access (PRMA) protocol with two new features: different classes of users, and different priorities and retransmission probabilities for those classes. Users who collide when trying to reserve the channel are distributed in subsets according to their class. Subsets are created using a splitting algorithm, and a different permission probability is assigned to each of them. Three sets of parameters have been measured in the mentioned system: average access delay, blocking probability and percentage of packets blocked for establishing the call. A comparison with the original PRMA is made
Keywords :
access protocols; asynchronous transfer mode; broadband networks; delays; digital simulation; microcellular radio; packet radio networks; packet reservation multiple access; probability; PRMA; PRMA protocol; average access delay; backoff scheme; blocked packets percentage; blocking probability; broadband services; call establishment; microcellular environments; multiclass users; packet reservation multiple access; performance evaluation; permission probability; priorities; retransmission probabilities; simulation; splitting algorithm; wireless ATM; Access protocols; Bandwidth; Bit rate; Delay systems; Educational institutions; Permission; Satellites; Spread spectrum communication; Telecommunications; Time division multiple access;
Conference_Titel :
Vehicular Technology Conference, 1999 IEEE 49th
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-5565-2
DOI :
10.1109/VETEC.1999.780525
