Effective capacity of multiple antenna channels: correlation and keyhole
Effective capacity of multiple antenna channels: correlation and keyhole
- Author(s): C. Zhong ; T. Ratnarajah ; K.-K. Wong ; M.-S. Alouini
- DOI: 10.1049/iet-com.2011.0450
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- Author(s): C. Zhong 1 ; T. Ratnarajah 2 ; K.-K. Wong 3 ; M.-S. Alouini 4
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View affiliations
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Affiliations:
1: Institute of Information and Communication Engineering, Zhejiang University, Hangzhou, People's Republic of China
2: The Institute of Electronics, Communications and Information Technology, Queen's University Belfast, Belfast, UK
3: Department of Electronic and Electrical Engineering, University College London, London, UK
4: Electrical Engineering, King Abdullah University of Science and Technology, Saudi Arabia
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Affiliations:
1: Institute of Information and Communication Engineering, Zhejiang University, Hangzhou, People's Republic of China
- Source:
Volume 6, Issue 12,
14 August 2012,
p.
1757 – 1768
DOI: 10.1049/iet-com.2011.0450 , Print ISSN 1751-8628, Online ISSN 1751-8636
In this study, the authors derive the effective capacity limits for multiple antenna channels which quantify the maximum achievable rate with consideration of link-layer delay-bound violation probability. Both correlated multiple-input single-output and multiple-input multiple-output keyhole channels are studied. Based on the closed-form exact expressions for the effective capacity of both channels, the authors look into the asymptotic high and low signal-to-noise ratio regimes, and derive simple expressions to gain more insights. The impact of spatial correlation on effective capacity is also characterised with the aid of a majorisation theory result. It is revealed that antenna correlation reduces the effective capacity of the channels and a stringent quality-of-service requirement causes a severe reduction in the effective capacity but can be alleviated by increasing the number of antennas.
Inspec keywords: channel capacity; wireless channels; antenna arrays; MIMO communication
Other keywords:
Subjects: Radio links and equipment; Antenna arrays
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