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An end-to-end multi-standard OFDM transceiver architecture using FPGA partial reconfiguration
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Pham, Thinh H., Fahmy, Suhaib A. and McLoughlin, Ian V. (2017) An end-to-end multi-standard OFDM transceiver architecture using FPGA partial reconfiguration. IEEE Access, 5 . pp. 21002-21015. doi:10.1109/ACCESS.2017.2756914 ISSN 2169-3536.
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Official URL: http://doi.org/10.1109/ACCESS.2017.2756914
Abstract
Cognitive radios that are able to operate across multiple standards depending on environmental conditions and spectral requirements, are becoming more important as the demand for higher bandwidth and efficient spectrum use in- creases. Traditional custom ASIC implementations cannot support such flexibility, with standards changing at a faster pace, while software implementations of baseband communication fail to achieve performance and latency requirements. Field programmable gate arrays (FPGAs) offer a hardware platform that combines flexibility, performance, and efficiency, and hence they have become key in meeting the requirements for flexible standards-based cognitive radio implementations. This paper proposes a dynamically reconfigurable end-to-end transceiver baseband that can switch between three popular OFDM standards, IEEE 802.11, IEEE 802.16 and IEEE 802.22, operating in non-contiguous fashion with rapid switching. We show that combining FPGA partial reconfiguration with parameterised modules offers a reduction in reconfiguration time of 71% and a FIFO size reduction of 25% compared to conventional approaches, and provides the ability to buffer data during reconfiguration to prevent link interruption. The baseband exposes a simple interface which maximises compatibility with different cognitive engine implementations.
Item Type: | Journal Article | ||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||
Library of Congress Subject Headings (LCSH): | Orthogonal frequency division multiplexing, Field programmable gate arrays | ||||||
Journal or Publication Title: | IEEE Access | ||||||
Publisher: | IEEE | ||||||
ISSN: | 2169-3536 | ||||||
Official Date: | 26 September 2017 | ||||||
Dates: |
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Volume: | 5 | ||||||
Page Range: | pp. 21002-21015 | ||||||
DOI: | 10.1109/ACCESS.2017.2756914 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Date of first compliant deposit: | 23 October 2017 | ||||||
Date of first compliant Open Access: | 23 October 2017 |
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