Step size optimization for fixed step closed loop power control on WCDMA high altitude platforms (HAPs) channel

Iskandar, A. Kurniawan, E. B. Sitanggang, S. Shimamoto

研究成果: Conference contribution

3 引用 (Scopus)

抜粋

This paper evaluates fixed step algorithm of closed loop power control and investigates an optimum step size for WCDMA communication employing high altitude platforms (HAPs). In CDMA, power control must be used to overcome near-far effect, shadowing and multipath fading. Users who are distributed within HAPs coverage will have different channel characteristic depending on their elevation angle. Therefore, parameter of power control algorithm should be designed to comply with the channel characteristic. Step size is one parameter in fixed step closed loop power control that will be investigated in this paper. Considering the measured HAPs channel characteristic, this paper investigates an optimum step size that will resulting a minimum power control error (PCE). Computer simulation shows that optimum step size depends on user's elevation angle. The higher the elevation angles the smaller the optimum step size of the power control.

元の言語English
ホスト出版物のタイトル2008 IEEE Global Telecommunications Conference, GLOBECOM 2008
ページ4065-4069
ページ数5
DOI
出版物ステータスPublished - 2008 12 1
イベント2008 IEEE Global Telecommunications Conference, GLOBECOM 2008 - New Orleans, LA, United States
継続期間: 2008 11 302008 12 4

出版物シリーズ

名前GLOBECOM - IEEE Global Telecommunications Conference

Conference

Conference2008 IEEE Global Telecommunications Conference, GLOBECOM 2008
United States
New Orleans, LA
期間08/11/3008/12/4

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • これを引用

    Iskandar, Kurniawan, A., Sitanggang, E. B., & Shimamoto, S. (2008). Step size optimization for fixed step closed loop power control on WCDMA high altitude platforms (HAPs) channel. : 2008 IEEE Global Telecommunications Conference, GLOBECOM 2008 (pp. 4065-4069). [4698555] (GLOBECOM - IEEE Global Telecommunications Conference). https://doi.org/10.1109/GLOCOM.2008.ECP.780