A Robust QR-based Detector for V-BLAST and its Efficient Hardware Implementation

Author

Sobhanmanesh, Fariborz ; Nooshabadi, Saeid ; Habibi, Daryoush

Author_Institution

Sch. of Electr. Eng. & Telecommun., New South Wales Univ., Sydney, NSW

fYear

2005

fDate

5-5 Oct. 2005

Firstpage

421

Lastpage

424

Abstract

The use of multiple antennas at both transmitting and receiving sides of a communication channel has increased the spectral efficiency to near the Shannon bound. However algorithmic complexity in the realization of the receiver is a major problem for its hardware implementation. In this paper we investigate a near optimal algorithm for V-BLAST detection in MIMO wireless communication systems based on QR factorization, offering remarkable reduction in the hardware complexity. Specifically, we analyze some hardware implementation aspects of the selected algorithm through MATLAB simulations and demonstrate its robustness. This technique can be used in an efficient fixed point VLSI implementation of the algorithm

Keywords

MIMO systems; VLSI; antenna arrays; computational complexity; radio networks; telecommunication channels; MATLAB simulations; MIMO wireless communication systems; QR factorization; Shannon bound; V-BLAST detection; algorithmic complexity; communication channel; efficient fixed point VLSI implementation; efficient hardware implementation; hardware complexity; multiple antennas; near optimal algorithm; robust QR-based detector; spectral efficiency; Algorithm design and analysis; Communication channels; Detectors; Hardware; MATLAB; MIMO; Receiving antennas; Robustness; Transmitting antennas; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2005 Asia-Pacific Conference on

Conference_Location

Perth, WA

Print_ISBN

0-7803-9132-2

Type

conf

DOI

10.1109/APCC.2005.1554093

Filename

1554093