DocumentCode :
691270
Title :
A Priority-Based Preemptive Channel Resource Allocation Mechanism for TETRA System
Author :
Cheng Meng ; Li Hai ; Ning Xu
Author_Institution :
Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China
fYear :
2013
fDate :
21-23 Sept. 2013
Firstpage :
1708
Lastpage :
1711
Abstract :
As a key characteristic of Terrestrial Trunked Radio (TETRA) networks, call priority has a significant impact on the system´s performance. A channel allocation model with priority queuing and resource preemptive capabilities has been proposed in this paper. Different types of voice traffic transmitting through TETRA networks possess different priorities as well as characteristics and demand different channel resources. A reasonable and effective channel assignment scheme is needed to provide better Quality of Service (QoS). In the proposed model, a pre-emptive priority call (including new call or handover call) can preempt any lower priority ongoing calls to ensure that emergency calls can be guaranteed priority service when resources are not immediately available. In addition, by introducing queuing strategies, the call blocking rate and dropping probability of lower priority calls are effectively reduced.
Keywords :
quality of service; queueing theory; radio networks; resource allocation; QoS; TETRA system; call priority; channel allocation model; priority queuing; priority-based preemptive channel resource allocation mechanism; quality of service; resource preemptive capabilities; terrestrial trunked radio networks; Channel allocation; Computer architecture; Handover; Protocols; Quality of service; Resource management; TETRA system; resource preemption; queuing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Instrumentation, Measurement, Computer, Communication and Control (IMCCC), 2013 Third International Conference on
Conference_Location :
Shenyang
Type :
conf
DOI :
10.1109/IMCCC.2013.377
Filename :
6840767
Link To Document :
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