NDLI: Two-tier Cellular Networks with Frequency Selective Surface

Content Provider	IEEE Xplore Digital Library
Author	Siyi Wang Weisi Guo O'Farrell, T.
Copyright Year	2012
Abstract	A key challenge is how to improve the wireless capacity of cellular networks for both outdoor and indoor users. Whilst deploying low power femtocells can significantly improve the indoor capacity, its interference can erode the outdoor capacity. In order to maximise the performance of the co-frequency two-tier network, the research challenge is how to minimise their mutual interference through coordination and other methods. This paper proposes a controllable interface that acts as a dynamic barrier between the outdoor and indoor networks. The interfaces comprises of a frequency-selective-surface (FSS) which is a band-stop filter. The paper also demonstrates that without any FSS interfaces, the mutual interference between indoor and outdoor networks erodes the capacity of each other significantly. The benefit of the FSS interface is that it is able to mitigate the mutual interference to the extent that their capacities are maximised. The results show that by deploying FSS interfaces, an improvement of up to 1.3 fold in mean throughput, 4.6 fold in throughput fairness for outdoor users and 1.2 fold in mean throughput, 2 fold in throughput fairness for indoor users can be achieved. The analysis is conducted using both a theoretical stochastic geometry analysis and multi-cell simulation results.
Starting Page	740
Ending Page	747
File Size	386413
Page Count	8
File Format	PDF
ISBN	9781467321648
DOI	10.1109/HPCC.2012.105
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-25
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency selective surfaces downlink Interference Throughput Mobile communication Indexes heterogeneous network spectral efficiency Data models interference Femtocells Frequency-selective-surface fairness index
Content Type	Text
Resource Type	Article

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