Spatial Multipath Resolution with Space Time Block Codes

Author

Senaratne, Damith ; Tellambura, Chintha

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada

Volume

1

Issue

3

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

249

Lastpage

252

Abstract

The use of space time block codes (STBCs) over frequency selective multipath multiple-input multiple-output (MIMO) channels is investigated in combination with spatial multipath resolution (SMR) [1], a novel spatial signal processing technique proposed by the authors for mitigating inter-symbol interference. Neither STBC nor SMR requires transmit channel state information. This fact, along with SMR not requiring any modification to the transmitter, makes the MIMO STBC-SMR hybrid effective. Numerical results are presented, illustrating how the scheme fares under the Alamouti STBC scheme, and highlighting the advantage of adaptive SMR - i.e., adapting the number of multipaths resolved based on the channel state. A practical multipath MIMO channel based on the IEEE 802.15.3c NLOS (CM4) model is used for simulation.

Keywords

MIMO communication; interference suppression; multipath channels; radio transmitters; space-time block codes; wireless channels; Alamouti STBC scheme; IEEE 802.15.3c NLOS model; MIMO STBC-SMR; channel state information; frequency selective MIMO channels; frequency selective multipath multiple-input multiple-output channels; intersymbol interference mitigation; radio transmitter; space time block codes; spatial multipath resolution; spatial signal processing technique; Fading; MIMO; Receiving antennas; Signal to noise ratio; Solids; Spatial resolution; SMR; STBC; frequency selective fading; spatial multipath resolution;

fLanguage

English

Journal_Title

Wireless Communications Letters, IEEE

Publisher

ieee

ISSN

2162-2337

Type

jour

DOI

10.1109/WCL.2012.041012.120016

Filename

6186720