Distribution of ISR and Its Optimization in Performance Evaluation of Forward Link in Cellular Mobile Radio Systems
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概要
- 論文の詳細を見る
In CDMA systems, power control strategy is the most important issue since the capacity of the system is only interference-limited. For a better understanding of the effects of Forward Link Power Control Strategy (FLPCS) on the outage probability in fading environments, this paper has presented a theoretical analysis of forward link in a CDMA cellular system by introducing the τ-th power of distance driven control strategy. Based on the power control, the capacity and outage probability of the system are estimated and discussed. In particular, we consider the impact of fading environments and investigate the "hole" phenomenon. Based on our numerical results, the "hole" points are at the upper bounds of where it is possible to ensure minimization of the maximum value of total Interference-to-Signal Ratio (ISR) [4]. At those upper bound points, at least, the power control strategy leads to approximately threefold the capacity compared to the case without power control strategy. It can be concluded that the forward link without power control strategy is a very heavy restriction for the capacity of the CDMA system, especially in environments of significant fading.
- 社団法人電子情報通信学会の論文
- 2002-07-25
著者
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KIKUCHI Hisakazu
Department of Electrical and Electronic Engineering, Niigata University
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ZHOU Jie
Department of Electrical and Electronic Engineering, Niigata University
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Zhou J
Department Of Electrical And Electronic Engineering Niigata University:(present Address)department O
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ONOZATO Yoshikuni
Department of Computer Science, Faculty of Engineering, Gunma University
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Zhou Jie
Denartment Of Electrical And Electronic Engineering Niigata University
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Zhou Jie
Department Of Electrical And Electronic Engineering Niigata University:(present Address)department O
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Kikuchi Hisakazu
Niigata Univ. Niigata Jpn
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Kikuchi Hisakazu
Dept. Of Electrical And Electronic Eng. Niigata University
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Kikuchi Hisakazu
Department Of Electrical And Electronic Engineering Graduate School Of Science And Technology
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Onozato Y
Gunma Univ. Kiryu‐shi Jpn
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Onozato Yoshikuni
Department Of Computer Science Faculty Of Engineering Gunma University
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ZHOU Jie
Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital
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