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Performance Evaluation of Distributed-Antenna Communications Systems Using Beam-Hopping

Hu, H., Zhu, J. and Yang, L.-L. (2005) Performance Evaluation of Distributed-Antenna Communications Systems Using Beam-Hopping Wireless Communications and Mobile Computing Journal, John Wiley & Sons, 4, (1), pp. 45-56.

Record type: Article


Digital beamforming (DBF) techniques are capable of improving the performance of communications systems significantly. However, if the transmitted signals are conflicted with strong interference, especially, in the direction of the transmitted beams , these directional jamming signalswill severely degrade the system performance. In order to efficiently mitigate the interference of the directional jammers, in this contribution a beam-hopping (BH) communications scheme is proposed. In the proposed BH communications scheme, only one pair of the beams is used for transmission and it hops from one to the next according to an assigned BH pattern. In this contribution a range of expressions in terms of the average SINR performance have been derived, when both the uplink and downlink are considered. The average SINR performance of the proposed BH scheme and that of the conventional single-beam (SB) as well as multiple-beam (MB) assisted beam-processing schemes have been investigated. Our analysis and results show that the proposed BH scheme is capable of efficiently combating the directional jamming, with the aid of utilizing the directional gain of the beams generated by both the transmitter and the receiver. Furthermore, the BH scheme is capable of reducing the intercept probability of the communications. Therefore, the proposed BH scheme is suitable for communications, when several distributed antenna arrays are available around a mobile.

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Published date: February 2005
Keywords: Beamforming, beam-hopping, single-beam, multiple-beam, SINR performance, distributed antenna.
Organisations: Southampton Wireless Group


Local EPrints ID: 262124
PURE UUID: 556490f2-6d13-4057-bd56-02a71c4a3285
ORCID for L.-L. Yang: ORCID iD

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Date deposited: 24 Mar 2006
Last modified: 18 Jul 2017 08:54

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Author: H. Hu
Author: J. Zhu
Author: L.-L. Yang ORCID iD

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