Aubry, Augusto
(2010)
MIMO Multiple Access Channels with Partial Channel State Information.
[Tesi di dottorato]
(Unpublished)
| Item Type: |
Tesi di dottorato
|
| Lingua: |
English |
| Title: |
MIMO Multiple Access Channels with Partial Channel State Information |
| Creators: |
| Creators | Email |
|---|
| Aubry, Augusto | augusto_aubry@virgilio.it |
|
| Date: |
30 November 2010 |
| Number of Pages: |
120 |
| Institution: |
Università degli Studi di Napoli Federico II |
| Department: |
Ingegneria biomedica, elettronica e delle comunicazioni |
| Scuola di dottorato: |
Ingegneria dell'informazione |
| Dottorato: |
Ingegneria elettronica e delle telecomunicazioni |
| Ciclo di dottorato: |
23 |
| Coordinatore del Corso di dottorato: |
| nome | email |
|---|
| Rinaldi, Niccolò | nirinald@unina.it |
|
| Tutor: |
| nome | email |
|---|
| Tulino, Antonia Maria | atulino@Princeton.EDU | | Conte, Ernesto | conte@unina.it |
|
| Date: |
30 November 2010 |
| Number of Pages: |
120 |
| Uncontrolled Keywords: |
Network Information Theory; Multiple Access Channel; MIMO Channel; Partial Channel State Information. |
| Settori scientifico-disciplinari del MIUR: |
Area 09 - Ingegneria industriale e dell'informazione > ING-INF/03 - Telecomunicazioni |
[error in script]
[error in script]
| Date Deposited: |
06 Dec 2010 12:35 |
| Last Modified: |
30 Apr 2014 19:44 |
| URI: |
http://www.fedoa.unina.it/id/eprint/8135 |
| DOI: |
10.6092/UNINA/FEDOA/8135 |
Abstract
The increasing demand for wireless communication systems has been the starting point for many
research activities and discussions about the best way to make a cleaver usage of the available spectrum
and the available power, in order to satisfy the requirements of the users. In these systems there are
several issues which have to be taken in to account for the evaluation of their Shannon-Capacity, i.e. the
maximum amount of information that can be reliably delivered: the mobility of the users, the presence
of time varying obstacles, power and bandwidth limitations. A lot of efforts have been conducted for
the Information-Theoretic characterization of wireless communication systems with the assumption of
perfect channel state information (CSI) at the receiver side.
In this Thesis an Information-Theoretic analysis of a Gaussian multiple-input multiple-output multiple
access channel (MIMO MAC), with partial channel knowledge at the receiver, is provided. In particular
an inner and an outer bound for the rate region of a MIMO MAC with partial CSI when the inputs
are Gaussian, are derived. Moreover, the behavior of the gaps between the upper and lower bounds of
the mutual information terms, which define the achievable rate region, is analyzed as function of: i) the
number of the users, ii) the number of the receiving antennas, and iii) the signal to noise ratio. The
problem of finding the precodings that attempt to maximize the lower bound to the sum-rate is also
considered. Furthermore, the low-SNR and high-SNR regime for a MIMO MAC with partial CSI at the
receiver are described. For the former, the attention is focused on the minimum energy per bit and on
the multiaccess slope region, while for the latter on the high-SNR slope.
The aforementioned framework turns out to be useful to describe the performance limits of two relevant
scenarios of MAC systems in which only a partial CSI can be used at the receiver: Cooperative MIMO
Networks and Training Based Systems.
The performed analysis shows that the rates achievable over a MIMO MAC channel with partial CSI at
the receiver side can be interpreted in terms of a coherent MIMO MAC channel with an increased noise
level.
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