A wideband spatial channel model for system-wide simulations
Publikation/Tidskrift/Serie: IEEE Transactions on Vehicular Technology
Dokumenttyp: Artikel i tidskrift
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.
A wideband space-time channel model is defined, which captures the multiple dependencies and variability in multicell system-wide operating environments. The model provides a unified, treatment of spatial and temporal parameters, giving their statistical description and dependencies across a large geographical area for three outdoor environments pertinent to third-generation cellular system simulations. Parameter values are drawn from a broad base of recently published wideband and multiple-antenna measurements. A methodology is given to generate fast-fading coefficients between a base station and a mobile user based on the summation of directional plane waves derived from the statistics of the space-time parameters. Extensions to the baseline channel model, such as polarized antennas, are given to provide a greater variety of spatial environments. Despite its comprehensive nature, the model's implementation complexity is reasonable so it can be used in simulating large-scale systems. Output statistics and capacities are used to illustrate the main characteristics of the model.
- Electrical Engineering, Electronic Engineering, Information Engineering
- angle spread
- channel model
- delay spread
- multipath channel
- multiple-input multiple-output (MIMO)
- stochastic model
- time-varying channel
- spatial channel model (SCM)
- ISSN: 1939-9359