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Non-fixed scatterers and their effects on MIMO multicarrier fading communication channels

Saligheh Rad, H ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. DOI: 10.1109/GLOCOM.2007.715
  3. Publisher: 2007
  4. Abstract:
  5. There are two types of scatterers in a multipath propagation environment: fixed and non-fixed scatterers. Fixed scatterers like buildings, mountains and tree stems do not move, while non-fixed (moving) scatterers like cars, people and tree leaves move from their initial positions. In addition to different movements of the mobile station (MS) that cause different kinds of Doppler fading, movements of non-fixed scatterers are also anticipated to generate other kinds of fading/correlation. This fading changes depend on the type of the propagation environment and the type of movements of local surrounding scatterers. In this paper we characterize these effects in terms of temporal correlations. In this study we assume constant speed for the MS and random displacements for scatterers based on stationary-increment Wiener vector process. As it will be verified, these random movements have direct effect on the channel process power spectral density (PSD). © 2007 IEEE
  6. Keywords:
  7. Doppler effect ; Fading channels ; Mobile telecommunication systems ; Multicarrier modulation ; Multipath propagation ; Power spectral density ; Doppler fading ; Mobile stations ; Scatterers ; Temporal correlations ; MIMO systems
  8. Source: 50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007, Washington, DC, 26 November 2007 through 30 November 2007 ; December , 2007 , Pages 3765-3769 ; 1424410436 (ISBN); 9781424410439 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/4411625/footnotes#footnotes