4G femtocell LTE base station with diversity and adaptive antenna techniques
4G femtocell LTE base station with diversity and adaptive antenna techniques
- Author(s): Yue Tian ; A. Nix ; M. Beach
- DOI: 10.1049/ic.2014.0104
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- Author(s): Yue Tian ; A. Nix ; M. Beach Source: 10th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM 2014), 2014 p. 216 – 221
- Conference: 10th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM 2014)
- DOI: 10.1049/ic.2014.0104
- ISBN: 978-1-84919-845-5
- Location: Beijing, China
- Conference date: 26-28 Sept. 2014
- Format: PDF
Modern mobile communication increasingly tends to provide high speed transmission multimedia services, therefore the deployment of 4G cellular networks is expected to provide the high speed transmission multimedia services that rely on heterogeneous radio access architectures, whereby cells of different coverage and capacity coexist in the same geographical areas. In this paper, we researched the real life problems that may influence the distributed antenna techniques in the uplink physical layer of the LTE femtocell system, and aim to find a suitable technology, by considering the trade-off between the cost and quality of the distributed antenna system, to improve the performance of the LTE femtocell base station. We mainly investigate three types of LTE femtocell base station: a) two distributed receive antennas and two-input LTE femtocell base station systems; b) two distributed receive antennas systems with combined Hub Unit and four input LTE femtocell base stations and; c) four distributed receive antennas systems and four-input LTE femtocell base stations. By using the distributed antennas and FPGA combined Hub Unit, we make the two-input LTE femtocell base stations' diversity performance match the four input LTE femtocell base stations. According to the software simulation results, the factors which may influence the Hub Unit combined techniques are analyzed in this paper. In addition, we introduced the WINNER 2 channel to evaluate the hardware performance in different propagation scenarios. Based on that, the real life propagation problems of the selected techniques are discussed in this paper.
Inspec keywords: field programmable gate arrays; receiving antennas; femtocellular radio; adaptive antenna arrays; 4G mobile communication; radiowave propagation; diversity reception; multimedia communication; wireless channels; Long Term Evolution
Subjects: Logic circuits; Multimedia communications; Mobile radio systems; Radiowave propagation; Antenna arrays
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