Journal of the Korean Operations Research and Management Science Society (한국경영과학회지)

The Korean Operations Research and Management Science Society (한국경영과학회)
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Optimal Power and Rate Allocation based on QoS for CDMA Mobile Systems

CDMA 이동통신시스템을 위한 QoS 기반 최적 전송출력/전송률 할당 체계

  • 장근녕 (연세대학교 경법대학 경영학과)
  • Published : 2003.12.01
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Abstract

This paper studies power and rate control for data users on the forward link of CDMA system with two cells. The QoS for data users is specified by delay and error rate constraints as well as a family of utility functions representing system throughput and fairness among data users. Optimal power and rate allocation problem is mathematically formulated as a nonlinear programming problem, which is to maximize total utility under delay and error rate constraints, and optimal power and rate allocation scheme (OPRAS) is proposed to obtain a good solution in a fast time. Computational experiments show that the proposed scheme OPRAS works very well and increases total utility compared to the separate power and rate allocation scheme (SPARS) which considers each cell individually.

Keywords

References

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