Closed form solution for QoS

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Closed form solution for QoS: constrained information--theoretic sum capacity of reverse link CDMA systems

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International Workshop on Modeling Analysis and Simulation of Wireless and Mobile Systems archive
Proceedings of the 2nd ACM international workshop on Quality of service & security for wireless and mobile networks table of contents

Terromolinos, Spain

SESSION: UMTS and heterogenous networks table of contents

Pages: 123 - 128

Year of Publication: 2006

ISBN:1-59593-486-3

Authors

Arash Abadpour	University of Manitoba and TRLabs, Winnipeg, Winnipeg, Canada
Attahiru Sule Alfa	University of Manitoba and TRLabs, Winnipeg, Winnipeg, Canada
Anthony C. K. Soong	Huawei Technological Co. Ltd., TX

Sponsors

ACM: Association for Computing Machinery
SIGSIM: ACM Special Interest Group on Simulation and Modeling

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ACM New York, NY, USA

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ABSTRACT

The information-theoretic maximum system capacity in a CDMA network, which guarantees fairness to mobile stations,can be achieved by optimally allocating transmit powers to the mobile stations while imposing individual QoS constraints. Even though this optimization is carried out in a multi-dimensional space we show that the optimal solution can be reduced to a search in a one-dimensional space. In this paper we first show that the previous results can be obtained by a simpler and more intuitive approach. Also, we show that the optimal solution is actually bang--bang. In addition, we show that the candidate solutions can be determined in a closed form. This considerably reduces the computational effort. Because rather than carrying out numerical search on a set of intervals, only a few explicitly determined points should now be examined

REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

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