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High-throughput multiple-input multiple-output systems for in-home multimedia streaming

Research output: Contribution to journalArticle

Original languageEnglish
Pages (from-to)60 - 66
Number of pages7
JournalIEEE Wireless Communications
Journal issue5
StatePublished - Oct 2006


Wireless communication systems based on multiple-input multiple-output (MIMO) technology have the potential to achieve increased spectral efficiency with no additional transmit power or bandwidth requirements. This can be achieved by exploiting the spatial subchannels between the multiple transmit and receive elements. The enhanced performance of MIMO technology makes it a strong candidate for ad hoc systems requiring very high throughput, such as high-definition multimedia streaming in the home. In this article we compare the performance of conventional and newly proposed MIMO architectures for such applications. Specifically designed antenna arrays are proposed as a solution to significantly reduced MIMO performance in line-of-sight (LoS) conditions. To help in the design of such systems, the criterion for achieving maximum MIMO capacity in LoS is presented as a function of the transmitter-to-receiver separation distance, the array orientation and the element spacings. The performance of the LoS-enhanced proposal and the conventional system is quantified in terms of the channel capacity, the packet error rate (PER) and the throughput by employing a MIMO-enabled WLAN physical layer simulator. The results from MIMO measurements performed inside an anechoic chamber and in an indoor environment are presented to validate the theoretic predictions

Additional information

Publisher: Institution of Electrical Engineers (IEE) Rose publication type: Journal article Sponsorship: The authors would like to thank the EU for partially supporting the continuation of this work under the FP6-IST-0028097 ASTRALS project Terms of use: Copyright © 2006 IEEE. Reprinted from IEEE Wireless Communications Magazine. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Research areas

  • ad hoc networks, antenna arrays, media streaming, MIMO communication, wireless LAN

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