Analysis of the Effect of Channel Sub-rating in Unidirectional Call Overflow Scheme for Call Admission in Hierarchical Cellular networks

Authors

X. Wu, University of Nevada, Las Vegas
J. ZhengFollow
Emma Regentova, University of Nevada, Las VegasFollow
Yingtao Jiang, University of Nevada, Las VegasFollow

Document Type

Conference Proceeding

Publication Date

4-22-2007

Publication Title

2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring

Publisher

IEEE

First page number:

1265

Last page number:

1269

Abstract

Key goals of call admission control in the next generations of wireless networks are the efficient use of the limited wireless resource and the enhanced quality of service (QoS). Knowing that blocking of handoff calls is less desirable than blocking of new calls and the latter inevitably leads to the reduced resource utilization, we propose in this paper a new call admission control for balancing this tradeoff. It is based on the sub-rating strategy (SRS) implemented in conjunction with unidirectional call overflow in hierarchical cellular networks (HCN). With SRS, an occupied full-rate channel is halved to service a call in progress and a handoff call in parallel. Theoretical models based on 1-D Markov process for a microcell and 2-D Markov chain for macrocell analyses are developed to evaluate the performance of the proposed scheme. We compare the results with that obtained by Shan in W.H. Shan and P.Z. Fan, (2003). The experimental results certify higher performance in terms of the forced termination probability. Additionally, we evaluate the voice degradation quality due to subrating.

Keywords

Call admission control; Land mobile radio cellular systems; Macrocell networks; Markov processes; Microcell networks; Next generation networking; Performance analysis; Quality of service; Resource management; Wireless networks

Disciplines

Biomedical | Electrical and Computer Engineering | Electrical and Electronics | Power and Energy | Signal Processing

Language

English

Comments

Conference held: Dublin, Ireland, 22-25 April 2007

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

Repository Citation

Wu, X., Zheng, J., Regentova, E., Jiang, Y. (2007). Analysis of the Effect of Channel Sub-rating in Unidirectional Call Overflow Scheme for Call Admission in Hierarchical Cellular networks. 2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring 1265-1269. IEEE.