Improved MIMO Throughput With Inverse Power Allocation—Study Using USRP Measurement in Reverberation Chamber

Author

Xiaoming Chen ; Einarsson, Bjarni Por ; Kildal, Per-Simon

Author_Institution

Dept. of Signals & Syst., Chalmers Univ. of Technol., Gothenburg, Sweden

Volume

13

fYear

2014

fDate

2014

Firstpage

1494

Lastpage

1496

Abstract

In this letter, we study the spatial multiplexing throughputs of multiple-input-multiple-output (MIMO) systems with fixed modulation and coding scheme (i.e., fixed peak rate) based on measurement of the universal software radio peripheral (USRP) in a reverberation chamber. In particular, we propose a simple inverse power allocation scheme for the singular value decomposition (SVD)-based MIMO system. Using the proposed power allocation, the power saving (for achieving the same throughput), compared to the SVD-MIMO without power allocation, is about 2.5 dB. Good agreement is observed between the USRP measurement and the simulation.

Keywords

MIMO communication; encoding; modulation; reverberation chambers; singular value decomposition; software radio; space division multiplexing; MIMO throughput; SVD-based MIMO system; USRP measurement; fixed coding; fixed modulation; fixed peak rate; inverse power allocation; multiple-input multiple-output systems; reverberation chamber; singular value decomposition; spatial multiplexing throughput; universal software radio peripheral; Antenna measurements; MIMO; Power measurement; Resource management; Reverberation chambers; Signal to noise ratio; Throughput; Multiple-input–multiple-output (MIMO); reverberation chamber (RC); universal software radio peripheral (USRP);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2014.2342217

Filename

6866118