市街地マイクロセル環境における実測角度遅延特性からの伝搬微細構造の抽出

• VUOKKO Lasse

  Helsinki University of Technology

• VAINIKAINEN Pertti

  Helsinki University of Technology

• TAKADA Jun-ichi

  Tokyo Institute of Technology

Bibliographic Information

Other Title

• Microscopic Propagation Mechanisms Extracted from Measured DoA Data in an Urban Macrocellular Environment

Abstract

移動体環境においては,電波は建物壁面からの反射,屋根やコーナーにおける回折,その他の周囲の物体からの散乱などにより,多重波伝搬環境となる.このような環境においては,近接した複数の散乱点からの到来波はクラスタと呼ばれ,通常複数のクラスタからの到来波が多重波伝搬環境を形成すると考えられている.本報告では,到来方向分布の実測結果を元に,クラスタを抽出し,個々のクラスタについて検討を行った.測定環境は市街地マクロセルであり,道路沿いおよび広場の2箇所で行った結果を用いている.クラスタの抽出結果に対して,具体的に散乱が生じる構造物を明らかにするとともに,平均強度,フェージング変動,偏波回転などの散乱過程の詳細を検討した.
Physical propagation environment around the mobile station is often described as a multipath environment, where power is received through diffraction over rooftops and building corners, reflections from walls and scattering in general from surrounding objects. When several multipath components scatter from the same point, it is seen as a cluster in the receiver. To study the propagation environment experimentally, measured direction-of-arrival data was clusterized and the clusters were studied separately. The measurements consist of two separate continuous mobile routes in an urban environment, one measurement on a street and the other at a square. From the extracted clusters their source points were located to the environment and some describing values were calculated. Common scattering sources were identified and the amount of significant clusters is discussed.

Journal

• IEICE technical report. Microwaves

  IEICE technical report. Microwaves 103 (236), 1-6, 2003-07-30

  The Institute of Electronics, Information and Communication Engineers

Keywords

• direction of arrival
• radio wave
• measurement
• cluster
• propagation mechanism

Details

• CRID: 1571698602376675968
• NII Article ID: 110003179347
• NII Book ID: AN10013185
• Text Lang: en
• Data Source:
  • CiNii Articles