Paper Info
Title
Simpler and more accurate throughput analysis of a DS CDMA-unslotted ALOHA system with two user classes based on M-M-infinity queueing model
Abstract
We propose that the throughput performance of the DS CDMA unslotted ALOHA system with two user classes is analyzed by the M-M-infinity queueing model without the death rate approximation. The previous scheme uses the M-D-infinity queueing model with the death rate approximation. The new analysis method is simpler than the previous one because four-dimensional summation is replaced by two-dimensional summation in the packet success probability calculation. The speed of new analysis program is 250 times faster than that of the previous one. In the numerical results, we consider the cases when the message arrival rates of the two classes are equal or not equal, and the access control is present or not. It shows that the proposed scheme has more accurate analyzed throughput than the previous one does. Copyright © 2009 John Wiley & Sons, Ltd. We proposed that the throughput performance of the DS CDMA unslotted ALOHA system with two user classes is analyzed by the M-M-infinity queueing model without the death rate approximation. The new analysis method is simpler than the previous one because four-dimensional summation is replaced by two-dimensional summation in the packet success probability calculation. The speed of new analysis program is 250 times faster. The numerical results show that the proposed scheme has more accurate analyzed throughput. Copyright © 2009 John Wiley & Sons, Ltd.
Year
DOI
Venue
2009
10.1002/dac.v22:8
Int. J. Communication Systems
Field
DocType
Volume
Aloha,Computer science,Network packet,Computer network,Infinity,Real-time computing,Queueing theory,Access control,Throughput,Code division multiple access
Journal
22
Issue
Citations 
PageRank 
8
2
0.38
References 
Authors
2
4
Name
Order
Citations
PageRank
Shu-ming Tseng110129.74
Yu-Chin Kuo241.16
Yi-Cheng Chang392.09
Der-Feng Tseng45110.46