A power-efficient coverage scheme for cell-edge users using cognitive beamforming
Conference paper
Zarrebini-Esfahani, A., Le, T. and Nakhai, M. 2013. A power-efficient coverage scheme for cell-edge users using cognitive beamforming. IEEE 24th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC). London, UK 08 - 11 Sep 2013 IEEE. pp. 3028-3032 https://doi.org/10.1109/PIMRC.2013.6666666
Type | Conference paper |
---|---|
Title | A power-efficient coverage scheme for cell-edge users using cognitive beamforming |
Authors | Zarrebini-Esfahani, A., Le, T. and Nakhai, M. |
Abstract | This paper addresses the problem of strong intercell interference on cell-edge users in conventional cellular networks by deploying cognitive cells within the vicinity of primary cell borders. The cognitive base stations serve primary cell-edge users within the cognitive cells. In return, the cognitive base stations are rewarded by the same spectrum allocated to the primary base stations to serve secondary users. We propose a strategy that is formulated as an optimization problem for the cognitive cell to minimize the total transmit power of the cognitive base station. This optimization problem is subjected to maintain a controlled level of interference at the primary outer-cell users falling outside of the cognitive cell and to assure required levels of signal-to-noise-plus-interference-ratio (SINR) at all primary cell-edge and secondary users within the cognitive cell. Simulation results confirm that the beamforming scheme in conjunction with the proposed cognitive structure lead to a significant reduction in overall power transmitted in the network. |
Keywords | Cognitive radio; beamforming; intercell interference; semidefinite programming |
Conference | IEEE 24th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) |
Page range | 3028-3032 |
Proceedings Title | 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) |
ISSN | 2166-9570 |
2166-9589 | |
ISBN | |
Electronic | 9781467362351 |
Publisher | IEEE |
Publication dates | |
08 Sep 2013 | |
Online | 25 Nov 2013 |
Publication process dates | |
Deposited | 05 Jun 2015 |
Output status | Published |
Digital Object Identifier (DOI) | https://doi.org/10.1109/PIMRC.2013.6666666 |
Web of Science identifier | WOS:000346481203021 |
Web address (URL) of conference proceedings | https://ieeexplore.ieee.org/xpl/conhome/6656121/proceeding |
Language | English |
https://repository.mdx.ac.uk/item/85950
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