Maximum sum-rate linear beamforming strategies for downlink TDD MC-CDMA systems

Author

Benvenuto, Nevio ; Bisaglia, Paola ; Boccardi, Federico

Author_Institution

Dipartimento di Ingegneria dell´´Informazione, Padova Univ.

fYear

2005

fDate

7-7 Sept. 2005

Firstpage

529

Lastpage

533

Abstract

In this paper we derive an iterative joint preceding and power allocation method for downlink MC-CDMA systems with multiple transmit antennas at the base station, which solves the maximum sum-rate problem, i.e. maximizes the system throughput under a constraint on the overall transmit power. It is seen that the proposed joint preceding and power control solution gives a great performance advantage over suboptimal solutions based on the Moore-Penrose, when at the base station only one antenna is used

Keywords

4G mobile communication; antenna arrays; code division multiple access; linear codes; power control; precoding; radio links; telecommunication congestion control; time division multiplexing; Moore-Penrose solutions; TDD MC-CDMA system downlink; iterative joint preceding; maximum sum-rate linear beamforming strategies; multiple transmit antennas; power allocation method; power control solution; Array signal processing; Base stations; Downlink; Iterative algorithms; Multiaccess communication; Multicarrier code division multiple access; Multiple access interference; OFDM; Signal to noise ratio; Transmitters; Downlink; MC-CDMA; multi-antenna; precoding;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communication Systems, 2005. 2nd International Symposium on

Conference_Location

Siena

Print_ISBN

0-7803-9206-X

Type

conf

DOI

10.1109/ISWCS.2005.1547758

Filename

1547758