Abstract
We consider the limits to the capacity of the multiple-input–multiple-output wireless channel as modeled by the finite scatterers channel model, a generic model of the multipath channel which accounts for each individual multipath component. We assume a normalization that allows for the array gain due to multiple receive antenna elements and, hence, can obtain meaningful limits as the number of elements tends to infinity. We show
that the capacity is upper bounded by the capacity of an identity channel of dimension equal to the number of scatterers. Because this bound is not very tight, we also determine an estimate of the capacity as the number of transmit/receive elements tends to infinity
which is asymptotically accurate.
Original language | English |
---|---|
Pages (from-to) | 812-818 |
Number of pages | 6 |
Journal | IEEE Journal on Selected Areas in Communication |
Volume | 21 |
Issue number | 5 |
DOIs | |
Publication status | Published - Jun 2003 |
Bibliographical note
Copyright © 2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.Keywords
- finite scatterers channel model
- multiple-input-multiple-output (MIMO) capacity
- SYSTEMS
- COMMUNICATION
- ANTENNAS
- MODEL