A dual-link capacity analysis of measured time-variant radio indoor channels
Författare
Summary, in English
There has been extensive research about single link multiple-input multiple-output (MIMO) channels, both simulated and measured, but only few studies have targeted multilink analysis with measured channel data. Hence, in this paper, we analyze the influence of spatial separation of user terminals and the human shadowing effect on the MIMO capacity and to the signal to interference ratio (SIR) in a time-variant dual-link scenario. The paper analyses the dual-link channel capacity based on simulations as well as measurements conducted using dynamic dual-link dual-polarized wideband MIMO channel sounder in an indoor office environment, and compare the results to the singlelink capacity. Here the analysis is restricted to 4 x 4 MIMO links. The following conclusions have been obtained from the analyses: 1) Compared to the single link case, the dual-link channel capacity is more affected by the SIR than the spatial separation of the users. 2) The human shadowing introduced variations of SIR up to ±10 dB, causing large fluctuations in the dual-link capacity.
Avdelning/ar
Publiceringsår
2010
Språk
Engelska
Publikation/Tidskrift/Serie
2010 IEEE 71st Vehicular Technology Conference
Dokumenttyp
Konferensbidrag
Förlag
IEEE - Institute of Electrical and Electronics Engineers Inc.
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Nyckelord
- MIMO
- Channel capacity
- Interference
- Antenna measurements
- Analytical models
- Power control
- Size measurement
- Humans
- Shadow mapping
- Wideband
Conference name
IEEE Vehicular Technology Conference (VTC2010-spring)
Conference date
2010-05-16 - 2010-05-19
Conference place
Taipei, Taiwan
Status
Published
Forskningsgrupp
- Radio Systems
ISBN/ISSN/Övrigt
- ISBN: 978-1-4244-2518-1