Capacity evaluation of measured vehicle-to- vehicle radio channels at 5.2 GHz
Författare
Summary, in English
Reliability in Ricean multiple-input-multipleoutput
(MIMO) channels is crucial for safety-related vehicle-tovehicle
(V2V) applications. In Ricean channels, there is a signalto-
noise ratio-dependent critical data rate below which signaling
with zero outage is possible. The link will be more reliable the
higher this critical data rate is. We present results of spectral
efficiency and outage probability from channel sounder
measurements of V2V MIMO radio channels in the 5.2 GHz
band. Our results show that MIMO channels with higher spatial
correlation lead to lower ergodic capacity and a reduced critical
data rate. However, for fixed output power the temporal
evolution of the ergodic capacity and critical data rate shows that
the channel with the strongest line of sight (LoS) component also
has the highest capacity.
(MIMO) channels is crucial for safety-related vehicle-tovehicle
(V2V) applications. In Ricean channels, there is a signalto-
noise ratio-dependent critical data rate below which signaling
with zero outage is possible. The link will be more reliable the
higher this critical data rate is. We present results of spectral
efficiency and outage probability from channel sounder
measurements of V2V MIMO radio channels in the 5.2 GHz
band. Our results show that MIMO channels with higher spatial
correlation lead to lower ergodic capacity and a reduced critical
data rate. However, for fixed output power the temporal
evolution of the ergodic capacity and critical data rate shows that
the channel with the strongest line of sight (LoS) component also
has the highest capacity.
Avdelning/ar
Publiceringsår
2010
Språk
Engelska
Dokumenttyp
Konferensbidrag
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Conference name
IEEE International Conference on Communications, ICC 2010
Conference date
2010-05-23 - 2010-05-27
Conference place
Cape Town, South Africa
Status
Published
Forskningsgrupp
- Radio Systems