Title :
Packet dropping analysis for reservation voice TDMA systems
Author :
Merakos, Lazaros ; Zervas, Evangelos
Author_Institution :
Dept. of Inf., Athens Univ., Greece
fDate :
7/1/1999 12:00:00 AM
Abstract :
We analyze the packet dropping performance in an ideal reservation time-division multiple-access (TDMA) multiplexing voice system with the focus on the probability distribution of the number of packets dropped in a particular talkspurt. Our analysis method is based on the discrete three-state Markov speech model which corresponds to the voice source equipped with a fast speech activity detector (SAD). The numerical results for a system of 14 slots/frame reveal that the probability of losing several packets in a talkspurt is much higher than expected (by geometric distribution) and thus not negligible
Keywords :
Markov processes; cellular radio; packet switching; probability; signal detection; time division multiple access; voice communication; GSM; discrete three-state Markov speech model; fast speech activity detector; geometric distribution; ideal reservation time-division multiple-access; packet dropping analysis; packet dropping performance; probability distribution; reservation voice TDMA systems; talkspurt; voice multiplexing system; voice source; Bit rate; Circuits; Delay; Detectors; Encoding; Helium; Performance analysis; Probability distribution; Speech analysis; Time division multiple access;
Journal_Title :
Vehicular Technology, IEEE Transactions on
