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Capacity analysis for compact MIMO systems

Författare

Summary, in English

We analyze the impact of mutual coupling on the capacity of MEMO systems with compact antenna arrays. Existing studies present conflicting views on the effect of mutual coupling. This is, in part, due to their different scopes and underlying assumptions of the system setups. In this paper, we aim to give a comprehensive picture by first examining the impact of mutual coupling on three capacity-related performance measures: antenna correlation, efficiency and bandwidth. While the first two aspects have received significant attention, antenna bandwidth with mutual coupling is a relatively uncharted territory. We show that while implementing a good matching network can drastically improve the system capacity for narrowband systems in the presence of strong mutual coupling, the same conclusions may not necessarily apply to wideband cases. To exemplify this, we carry out capacity simulations for an end-to-end MIMO system, where a recently proposed S-parameter approach is used in conjunction with the 3GPP-3GPP2 channel model to model realistic wideband channel and antenna effects at both transmit and receive ends.

Publiceringsår

2005

Språk

Engelska

Sidor

165-170

Publikation/Tidskrift/Serie

IEEE 61st Vehicular Technology Conference, VTC 2005-Spring

Volym

61

Issue

1

Dokumenttyp

Konferensbidrag

Förlag

IEEE - Institute of Electrical and Electronics Engineers Inc.

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Nyckelord

  • System setups
  • Mutual couplings
  • Antenna effects
  • MIMO systems

Conference name

IEEE Vehicular Technology Conference -VTC Spring, 2005

Conference date

2005-05-30 - 2005-06-01

Conference place

Stockholm, Sweden

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1550-2252
  • ISBN: 0-7803-8887-9