Predictive call admission control algorithm for power-controlled wireless systems
In wireless communication systems, a conventional call admission control (CAC) mechanism determines whether a node can be admitted to the network by firstly monitoring the received interference plus noise and estimate the achievable signal-to-interference-plus-noise ratio (SINR). However, in the pre...
| Main Authors: | , , |
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| Format: | Book Section |
| Language: | English |
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Springer Berlin Heidelberg
2006
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| Online Access: | http://shdl.mmu.edu.my/2061/ http://shdl.mmu.edu.my/2061/1/Predictive%20call%20Admission%20Control%20Algorithm%20for%20Power-Controlled%20Wireless%20Systems.pdf |
| _version_ | 1848789953793753088 |
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| author | Chin, Choong Ming Sim, Moh Lim Olafsson, Sverrir |
| author_facet | Chin, Choong Ming Sim, Moh Lim Olafsson, Sverrir |
| author_sort | Chin, Choong Ming |
| building | MMU Institutional Repository |
| collection | Online Access |
| description | In wireless communication systems, a conventional call admission control (CAC) mechanism determines whether a node can be admitted to the network by firstly monitoring the received interference plus noise and estimate the achievable signal-to-interference-plus-noise ratio (SINR). However, in the presence of power control, the SINR may vary over time, thus, rendering the conventional CAC inaccurate. The maximum achievable SINR for a new node in a general wireless system depends on the link gains amongst all the co-channel interfering nodes involved. Thus, one of the challenges of CAC in a power-controlled wireless system is the estimation of maximum achievable SINR when information about global link gains is not available. By ignoring the white noise factor, we present a predictor for the maximum achievable signal-to-interference ratio (SIR) of a new node trying to gain access to the medium. Using the SIR predictor we then calculate an optimal active link protection margin, which together with a SIR threshold would constitute an enhanced threshold value for the new node to attain. By doing so current active communication links would be protected from performance degradation should the maximum achievable SIR value common to all the nodes be lower than the SIR threshold. The accuracy of the predictor is evaluated by means of simulation in terms of mean error and root-mean-square error. Together with finding the corresponding optimal active link protection margin, efficient CAC mechanism to ensure stability of the feasible system can be maintained over a wide range of operating SIR values. |
| first_indexed | 2025-11-14T18:04:55Z |
| format | Book Section |
| id | mmu-2061 |
| institution | Multimedia University |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T18:04:55Z |
| publishDate | 2006 |
| publisher | Springer Berlin Heidelberg |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | mmu-20612014-01-16T03:02:49Z http://shdl.mmu.edu.my/2061/ Predictive call admission control algorithm for power-controlled wireless systems Chin, Choong Ming Sim, Moh Lim Olafsson, Sverrir QA75.5-76.95 Electronic computers. Computer science In wireless communication systems, a conventional call admission control (CAC) mechanism determines whether a node can be admitted to the network by firstly monitoring the received interference plus noise and estimate the achievable signal-to-interference-plus-noise ratio (SINR). However, in the presence of power control, the SINR may vary over time, thus, rendering the conventional CAC inaccurate. The maximum achievable SINR for a new node in a general wireless system depends on the link gains amongst all the co-channel interfering nodes involved. Thus, one of the challenges of CAC in a power-controlled wireless system is the estimation of maximum achievable SINR when information about global link gains is not available. By ignoring the white noise factor, we present a predictor for the maximum achievable signal-to-interference ratio (SIR) of a new node trying to gain access to the medium. Using the SIR predictor we then calculate an optimal active link protection margin, which together with a SIR threshold would constitute an enhanced threshold value for the new node to attain. By doing so current active communication links would be protected from performance degradation should the maximum achievable SIR value common to all the nodes be lower than the SIR threshold. The accuracy of the predictor is evaluated by means of simulation in terms of mean error and root-mean-square error. Together with finding the corresponding optimal active link protection margin, efficient CAC mechanism to ensure stability of the feasible system can be maintained over a wide range of operating SIR values. Springer Berlin Heidelberg 2006 Book Section NonPeerReviewed text en http://shdl.mmu.edu.my/2061/1/Predictive%20call%20Admission%20Control%20Algorithm%20for%20Power-Controlled%20Wireless%20Systems.pdf Chin, Choong Ming and Sim, Moh Lim and Olafsson, Sverrir (2006) Predictive call admission control algorithm for power-controlled wireless systems. In: Ad-Hoc, Mobile, and Wireless Networks. Lecture Notes in Computer Science (4104). Springer Berlin Heidelberg, pp. 414-427. ISBN 978-3-540-37246-2 http://link.springer.com/chapter/10.1007%2F11814764_34 10.1007/11814764_34 10.1007/11814764_34 10.1007/11814764_34 |
| spellingShingle | QA75.5-76.95 Electronic computers. Computer science Chin, Choong Ming Sim, Moh Lim Olafsson, Sverrir Predictive call admission control algorithm for power-controlled wireless systems |
| title | Predictive call admission control algorithm for power-controlled wireless systems |
| title_full | Predictive call admission control algorithm for power-controlled wireless systems |
| title_fullStr | Predictive call admission control algorithm for power-controlled wireless systems |
| title_full_unstemmed | Predictive call admission control algorithm for power-controlled wireless systems |
| title_short | Predictive call admission control algorithm for power-controlled wireless systems |
| title_sort | predictive call admission control algorithm for power-controlled wireless systems |
| topic | QA75.5-76.95 Electronic computers. Computer science |
| url | http://shdl.mmu.edu.my/2061/ http://shdl.mmu.edu.my/2061/ http://shdl.mmu.edu.my/2061/ http://shdl.mmu.edu.my/2061/1/Predictive%20call%20Admission%20Control%20Algorithm%20for%20Power-Controlled%20Wireless%20Systems.pdf |