Switched Multi-Radio Transmission Diversity for Non-Collocated Radio Accesses

Author

Reza Karimi, H. ; Koudouridis, Georgios P. ; Dimou, Konstantinos ; Karlsson, Peter

Author_Institution

Lucent Technol. Bell Lab.

Volume

1

fYear

2006

fDate

7-10 May 2006

Firstpage

167

Lastpage

171

Abstract

We evaluate the spectral efficiency gains observed through multi-radio transmission diversity (MRTD), whereby packets of data are jointly scheduled for downlink transmission over multiple independent radio accesses. We specifically address downlink switched MRTD employed across macro- and pico-cellular radio accesses with non-collocated base stations in a hierarchical cell structure. It is shown that while significant gains can be achieved via MRTD among collocated macro-cell (or pico-cell) base stations, tight cooperation across non-collocated macro-and pico-cell base stations is only beneficial for a small subset of possible geometries. The impact of CQI reporting delays is also investigated

Keywords

diversity reception; microcellular radio; multi-access systems; picocellular radio; radio access networks; telecommunication switching; channel quality information; downlink switched multi-radio transmission diversity; hierarchical cell structure; macro-cellular radio accesses; multiple independent radio accesses; noncollocated radio accesses; pico-cellular radio accesses; spectral efficiency gains; Ambient networks; Base stations; Delay; Design optimization; Downlink; Geometry; Packet switching; Rats; Research and development; Scheduling algorithm; Ambient Networks; generic link layer; joint scheduling; multi-radio access; multi-radio transmission diversity; networks beyond 3G; radio access allocation;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd

Conference_Location

Melbourne, Vic.

ISSN

1550-2252

Print_ISBN

0-7803-9391-0

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2006.1682797

Filename

1682797