Title :
A new protocol for the integration of voice and data over PRMA
Author :
Narasimhan, Parthasarathy ; Yates, Roy D.
Author_Institution :
WINLAB, Rutgers Univ., Piscataway, NJ, USA
fDate :
5/1/1996 12:00:00 AM
Abstract :
In packet reservation multiple access (PRMA) the receiver in the mobile terminal is required to listen continuously to monitor the acknowledgment messages broadcasted at the end of every time slot. A new scheme for the integration of voice and data based on PRMA is proposed. The voice and the data subsystems are logically separated. The total available bandwidth is divided into three regions-voice information, voice contention, and data regions. The available bandwidth is dynamically partitioned between the above three regions subject to the fulfillment of the quality of service (QoS) requirements of the voice users. The voice subsystem has been modeled as a Markov chain and an exact analytical method used to compute the voice packet dropping probability is described. A nonlinear programming problem is formulated to optimize the bandwidth allocated for the data users. Solutions to this nonlinear programming problem that are very close to optimum have been obtained heuristically. Numerical results indicate that a significant amount of data traffic can be supported without sacrificing the voice capacity of the system
Keywords :
Markov processes; data communication; land mobile radio; nonlinear programming; packet reservation multiple access; probability; telecommunication traffic; voice communication; Markov chain; PRMA; QoS; bandwidth; data region; data subsystems; data traffic; exact analytical method; mobile terminal; nonlinear programming problem; numerical results; packet reservation multiple access; protocol; quality of service; receiver; voice capacity; voice contention region; voice information region; voice packet dropping probability; voice subsystems; voice-data integration; Access protocols; Bandwidth; Broadcasting; Decoding; Delay effects; Multiplexing; Performance analysis; Quality of service; Speech analysis; Time division multiple access;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
