A 2.4 Gb/s millimeter-wave link using adaptive spatial multiplexing

Author

Sheldon, Colin ; Seo, Munkyo ; Torkildson, Eric ; Madhow, Upamanyu ; Rodwell, Mark

Author_Institution

UCSB, CA, USA

fYear

2010

fDate

11-17 July 2010

Firstpage

1

Lastpage

4

Abstract

A scalable system architecture is proposed and demonstrated for spatial multiplexing over millimeter-wave line-of-sight communication links. The architecture decouples spatial channel separation from demodulation, allowing the system bandwidth and data rates to scale up, while performing spatial processing on a time scale matched to the slow time variations of the spatiotemporal channel. The spatially multiplexed channels are separated at the receiver using broadband adaptive analog I/Q vector signal processing. A control loop continuously tunes the channel separation electronics to correct for changes with time in either the propagation environment or the system components. Design and characterization of a four-channel 60 GHz hardware prototype operating at 2.4 Gb/s is presented. This result is the highest data rate line-of-sight wireless link employing adaptive spatial multiplexing reported to date.

Keywords

adaptive signal processing; demodulation; millimetre waves; radio links; space division multiplexing; spatiotemporal phenomena; wireless channels; adaptive spatial multiplexing; bit rate 2.4 Gbit/s; broadband adaptive analog vector signal processing; demodulation; frequency 60 GHz; millimeter-wave line-of-sight communication link; scalable system architecture; spatial channel; spatially multiplexed channel; spatiotemporal channel; system bandwidth; Baseband; Bit error rate; Hardware; Multiplexing; Prototypes; Receivers; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE

Conference_Location

Toronto, ON

ISSN

1522-3965

Print_ISBN

978-1-4244-4967-5

Type

conf

DOI

10.1109/APS.2010.5561718

Filename

5561718