Cluster parameters for time-variant MIMO channel models
Author
Summary, in English
The next challenge for MIMO radio channel models is to
simulate the time-variant nature of the channel correctly.
Cluster-based MIMO channel models are well suited for
this problem, however they currently lack an accurate parameterization of the time-variant cluster parameters.
In this paper we identify and track clusters from three differentmeasurements conducted in an indoor, a sub-urban,
and a rural environment. The time-variant cluster parameters of interest are: (i) cluster movement, (ii) change of cluster spreads, (iii) cluster lifetimes, and birth and death rates of cluster. We find that clusters show significant movement in parameter space depending on the environment. The spreads of individual clusters change rather randomly over their lifetime, with a standard deviation up to 150% of their mean spread. The cluster lifetime is approximately exponentially distributed, however additionally one has to account for long-living clusters coming from the line-of-sight path or from major reflectors.
simulate the time-variant nature of the channel correctly.
Cluster-based MIMO channel models are well suited for
this problem, however they currently lack an accurate parameterization of the time-variant cluster parameters.
In this paper we identify and track clusters from three differentmeasurements conducted in an indoor, a sub-urban,
and a rural environment. The time-variant cluster parameters of interest are: (i) cluster movement, (ii) change of cluster spreads, (iii) cluster lifetimes, and birth and death rates of cluster. We find that clusters show significant movement in parameter space depending on the environment. The spreads of individual clusters change rather randomly over their lifetime, with a standard deviation up to 150% of their mean spread. The cluster lifetime is approximately exponentially distributed, however additionally one has to account for long-living clusters coming from the line-of-sight path or from major reflectors.
Publishing year
2007
Language
English
Publication/Series
Proc. European Conference on Antennas and Propagation (EuCAP) 2007
Links
Document type
Conference paper
Topic
- Electrical Engineering, Electronic Engineering, Information Engineering
Conference name
European Conference on Antennas and Propagation (EuCAP) 2007
Conference date
2007-11-11 - 2007-11-16
Conference place
Edinburgh, United Kingdom
Status
Published