Siswanto, D, Zhang, L and Navaie, K (2014) Spectrum splitting-based cognitive interference management in two-tier LTE networks. In: 2014 11th International Symposium on Wireless Communications Systems, ISWCS 2014 - Proceedings. 11th International Symposium on Wireless Communications Systems, 26-29 Aug 2014, Barcelona, Spain. Institute of Electrical and Electronics Engineers , 613 - 617. ISBN 978-1-4799-5863-4
Abstract
In this paper, we propose a spectrum splitting-based cognitive interference management method for LTE downlink two-tier networks (that provide closed-access mode). In the proposed method, the resource-blocks in the macrocell (in frequency and time domain) are allocated to the users with the received signal-to-interference-plus-noise-ratio greater than a threshold. The rest of resource-blocks are then allocated to the femtocells. To evaluate the effectiveness of this method, we develop a system level simulation and compare the proposed method with no interference management and also interfering resource blocking-based cognitive interference management method (IRB-CIM). It is shown that the proposed method significantly increases average throughput of femtocells' cell-edges. Furthermore, the simulation results indicate that by adjusting parameters, the proposed method results in higher average throughput for femtocells and for overall system compared to other methods. The proposed method senses control-channel of the macrocell to detect spectrum availability which is simpler and faster than IRB-CIM.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2013, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Institute of Communication & Power Networks (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 21 May 2015 15:37 |
Last Modified: | 17 Jan 2018 23:37 |
Published Version: | http://dx.doi.org/10.1109/ISWCS.2014.6933427 |
Status: | Published |
Publisher: | Institute of Electrical and Electronics Engineers |
Identification Number: | 10.1109/ISWCS.2014.6933427 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:84539 |