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A Novel Evaluation Method for the Downlink Capacity of Distributed Antenna Systems
Wei FENG
Yifei ZHAO
Ming ZHAO
Shidong ZHOU
Jing WANG
Minghua XIA
Publication
IEICE TRANSACTIONS on Communications Vol.E92-B No.6 pp.2226-2230
Publication Date: 2009/06/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Fundamental Theories for Communications
Keyword:
distributed antenna system (DAS),
downlink capacity,
random matrix theory,
iterative method,
Full Text: PDF(338.3KB)
Summary:
This letter focuses on the simplified capacity evaluation for the downlink of a distributed antenna system (DAS) with random antenna layout. Based on system scale-up, we derive a good approximation of the downlink capacity by developing the results from random matrix theory. We also propose an iterative method to calculate the unknown parameters in the approximated expression of the downlink capacity. The approximation is illustrated to be quite accurate and the iterative method is shown to be quite efficient by Monte Carlo simulations.
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