Solving the ZF Receiver Equation for MIMO Systems Under Variable Channel Conditions Using the Block Fourier Algorithm

Author

Silva, João Carlos ; Dinis, Rui ; Rodrigues, António ; Cercas, Francisco ; Souto, Nuno ; Jesus, Sérgio

Author_Institution

Inst. de Telecomuniacoes, Instituto Superior Tecnico, Lisbon

fYear

2006

fDate

28-31 Aug. 2006

Firstpage

287

Lastpage

291

Abstract

The ZF (zero forcing) algorithm is one of the best linear receivers for DS-CDMA (direct sequence-code division multiple access). However, for the case of MIMO/BLAST (multiple input, multiple output/Bell Laboratories layered space time) with high loading, the perceived complexity of the ZF receiver is taken as too big, and thus other types of receivers are employed, yielding worse results. In this paper, we investigate the complexity of the solution to the MIMO ZF receiver´s equations using block-Fourier algorithms, for both steady and unsteady channel situations

Keywords

Fourier transforms; MIMO communication; code division multiple access; spread spectrum communication; BLAST; Bell Laboratories layered space time system; DS-CDMA; MIMO system; ZF receiver equation; block Fourier algorithm; direct sequence-code division multiple access; linear receiver; multiple input-multiple output system; variable channel condition; zero forcing algorithm; Change detection algorithms; Discrete Fourier transforms; Equations; MIMO; Matrices; Matrix decomposition; Multiple access interference; Partitioning algorithms; Spread spectrum communication; Telecommunications; Block Fourier; MIMO; Zero Forcing; unsteady channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 2006 IEEE Ninth International Symposium on

Conference_Location

Manaus-Amazon

Print_ISBN

0-7803-9779-7

Electronic_ISBN

0-7803-9780-0

Type

conf

DOI

10.1109/ISSSTA.2006.311780

Filename

4100569