Title
On Mutual Information and Capacity in Frequency Selective Wireless Channels
Abstract
This paper has two major contributions. First, we present measured frequency selective wireless channels and show that there is only a small difference between mutual information and capacity. For single-antenna channels the maximum difference is about 0.15 bit/s/Hz, but typical differences are much smaller. These differences are increased with the number of transmit and receive antennas, achieving a maximum of about 0.4 bit/s/Hz for 2x2 MIMO channels and about 1.8 bit/s/Hz for 4x4 MIMO channels. The second contribution is a simple two-parameter channel model for frequency selective wireless channels, exhibiting the identical behavior in terms of capacity and mutual information than the measured channels. Due to its simplicity, this so-called poor-rich model is especially suitable for fast simulations and for analytical research in the field of information theory.
Year
DOI
Venue
2010
10.1109/ICC.2010.5501942
ICC
Keywords
Field
DocType
throughput,information analysis,signal to noise ratio,mutual information,transmitters,mimo,information theory
Information theory,Spatial correlation,Multi-user MIMO,Computer science,MIMO,Computer network,Communication channel,Mutual information,Channel capacity,Precoding
Conference
ISSN
ISBN
Citations 
1550-3607
978-1-4244-6402-9
4
PageRank 
References 
Authors
0.58
2
5
Name
Order
Citations
PageRank
Markus Rupp140.58
José Antonio García-Naya29919.97
Christian Mehlführer324417.83
Sebastian Caban410018.63
Luis Castedo557773.24