On the convergence of fixed-step power control algorithms with binary feedback for mobile communication systems
- Title
- On the convergence of fixed-step power control algorithms with binary feedback for mobile communication systems
- Author
- 김동우
- Keywords
- Binary feedback power control; convergence; mobile communication systems
- Issue Date
- 2001-02
- Publisher
- IEEE
- Citation
- IEEE TRANSACTIONS ON COMMUNICATIONS, v. 49, issue. 2, page. 249-252
- Abstract
- The mobile transmitter power control algorithms that need to exchange the exact information on link gains, interference levels, or signal-to-interference ratio (SIR) between transmitters and receivers have been proved to converge to a unique fixed power allocation. However, such exact exchange requires an excessive bandwidth for signalling traffic. In practical systems, only 1 hit is sent back to each transmitter. The 0-1 binary feedback is used by the transmitter either to increase or to decrease the power level by a predetermined amount, In this study, we prove a convergence property of the binary feedback power control algorithm. Since the power level of each transmitter is changed by a fixed amount at every iteration, we cannot claim that the power converges to a fixed point, Instead, we show that the received SIR of each user falls within a certain specific range that is determined by an SIR target and a power control step-size.
- URI
- https://ieeexplore.ieee.org/document/905878?arnumber=905878&SID=EBSCO:edseeehttps://repository.hanyang.ac.kr/handle/20.500.11754/158670
- ISSN
- 0090-6778
- DOI
- 10.1109/26.905878
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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