802.11 with multiple antennas for dummies

Author:

Halperin Daniel1,Hu Wenjun1,Sheth Anmol2,Wetherall David1

Affiliation:

1. University of Washington, Seattle, WA, USA

2. Intel Labs Seattle, Seattle, WA, USA

Abstract

The use of multiple antennas and MIMO techniques based on them is the key feature of 802.11n equipment that sets it apart from earlier 802.11a/g equipment. It is responsible for superior performance, reliability and range. In this tutorial, we provide a brief introduction to multiple antenna techniques. We describe the two main classes of those techniques, spatial diversity and spatial multiplexing. To ground our discussion, we explain how they work in 802.11n NICs in practice.

Publisher

Association for Computing Machinery (ACM)

Subject

Computer Networks and Communications,Software

Reference9 articles.

1. IEEE Std. 802.11n-2009: Enhancements for higher throughput. http://www.ieee802.org 2009. IEEE Std. 802.11n-2009: Enhancements for higher throughput. http://www.ieee802.org 2009.

2. A. Goldsmith. Wireless Communications. Cambridge University Press 2005. A. Goldsmith. Wireless Communications. Cambridge University Press 2005.

3. Efficient channel-aware rate adaptation in dynamic environments

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