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Joint Signal Processing in Femtocell Based Distributed Antenna Systems in High Buildings

Alade, Temitope and Zhu, H. and Wang, J. (2010) Joint Signal Processing in Femtocell Based Distributed Antenna Systems in High Buildings. In: Conference Proceedings for the Vehicular Technology Conference Fall (VTC 2010)). IEEE, Piscataway, New Jersey, USA, pp. 1-5. ISBN 978-1-4244-3573-9 Online: 978-1-4244-3574-6

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Abstract

In wireless systems, coverage and capacity is a major challenge especially in high buildings. The system performance is impaired by cochannel interference created due to the need to reuse the limited available spectrum in nearby floors. Each base station (BS) does not only receives signals from the desired user but also from cochannel interferers in the neighbouring floors, thereby limiting the coverage and capacity of the indoor networks. Joint processing of the received signal among cochannel receivers has drawn considerable attention in recent years due to its enormous benefits from an interference cancellation point of view. This paper proposes and investigates the uplink of a femtocell based distributed antenna systems (DAS) in high buildings where remote antenna units deployed (RAU) on each floor of the building are connected to femto BS. The femto BSs can cooperate through joint signal processing for all femtocells in order to estimate the received signal, reduce cochannel interference introduced by frequency reuse among the femtocells and maintain high spectral efficiency. Investigation and numerical results show remarkable gains especially when interference cancellation is employed at each cooperative femto BS, resulting in large capacity increase when compared with the traditional system with no interference cancellation technique.

Item Type: Book Section
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2010 IEEE International Conference on Communications (ICC) held
on the 6-9 September 2010 in Ottawa, Canada

Uncontrolled Keywords: signal processing, antennas, cellular radio, cochannel interference, frequency allocation, radio receivers
Divisions: Academic Departments > Worcester Business School
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Depositing User: Tanya Buchanan
Date Deposited: 25 Jul 2017 12:44
Last Modified: 25 Jul 2017 12:44
URI: https://eprints.worc.ac.uk/id/eprint/5677

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