A mm-wave analog adaptive array with genetic algorithm for interference mitigation

C. Lu; Y. Wu; Reza Mahmoudi; M. Matters - Kammerer; P.G.M. Baltus

doi:10.1109/ISCAS.2012.6271774

A mm-wave analog adaptive array with genetic algorithm for interference mitigation

C. Lu, Y. Wu, Reza Mahmoudi, M. Matters - Kammerer, P.G.M. Baltus

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

3 Citations (Scopus)

3 Downloads (Pure)

Abstract

In the future dense 60 GHz wireless environments, co-channel interference (CCI) is a potential problem that degrades the link quality. In this paper, a genetic algorithm (GA) assisted analog adaptive array is proposed for 60 GHz indoor applications to mitigate the CCI. The GA optimizes the weights on each receiver path to attenuate CCI from different directions and improve signal-to-interference-plus-noise ratio (SINR) with robustness. We make two further improvements for better spatial re-use. First, we take into account the trade-off between array gain at the desired direction and interference suppression by proposing adaptivity on the weights control in GA. By adaptively increasing phase perturbation, near-optimum SINR can be achieved for different interference situations. Secondly, in some cases, the link requires less receiver paths than available, e.g. for line-of-sight links. So instead of using fixed antennas, we further propose antenna selection in the GA. A further improvement on spatial re-use can be achieved compared to arrays with fixed uniform spacing.

Original language	English
Title of host publication	Proceedings of the IEEE International Symposium on Circuits and systems (ISCAS), 20-23 May 2012, Seoul, Korea
Place of Publication	Piscataway
Publisher	Institute of Electrical and Electronics Engineers
Pages	2373-2376
ISBN (Print)	978-1-4673-0218-0
DOIs	https://doi.org/10.1109/ISCAS.2012.6271774
Publication status	Published - 2012
Event	2012 IEEE International Symposium on Circuits and Systems (ISCAS 2012) - Seoul, Korea, Republic of Duration: 20 May 2012 → 23 May 2012

Conference

Conference	2012 IEEE International Symposium on Circuits and Systems (ISCAS 2012)
Abbreviated title	ISCAS 2012
Country	Korea, Republic of
City	Seoul
Period	20/05/12 → 23/05/12

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Lu, C., Wu, Y., Mahmoudi, R., Matters - Kammerer, M., & Baltus, P. G. M. (2012). A mm-wave analog adaptive array with genetic algorithm for interference mitigation. In Proceedings of the IEEE International Symposium on Circuits and systems (ISCAS), 20-23 May 2012, Seoul, Korea (pp. 2373-2376). Piscataway: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ISCAS.2012.6271774

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title = "A mm-wave analog adaptive array with genetic algorithm for interference mitigation",

abstract = "In the future dense 60 GHz wireless environments, co-channel interference (CCI) is a potential problem that degrades the link quality. In this paper, a genetic algorithm (GA) assisted analog adaptive array is proposed for 60 GHz indoor applications to mitigate the CCI. The GA optimizes the weights on each receiver path to attenuate CCI from different directions and improve signal-to-interference-plus-noise ratio (SINR) with robustness. We make two further improvements for better spatial re-use. First, we take into account the trade-off between array gain at the desired direction and interference suppression by proposing adaptivity on the weights control in GA. By adaptively increasing phase perturbation, near-optimum SINR can be achieved for different interference situations. Secondly, in some cases, the link requires less receiver paths than available, e.g. for line-of-sight links. So instead of using fixed antennas, we further propose antenna selection in the GA. A further improvement on spatial re-use can be achieved compared to arrays with fixed uniform spacing.",

author = "C. Lu and Y. Wu and Reza Mahmoudi and {Matters - Kammerer}, M. and P.G.M. Baltus",

year = "2012",

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language = "English",

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Lu, C, Wu, Y, Mahmoudi, R, Matters - Kammerer, M & Baltus, PGM 2012, A mm-wave analog adaptive array with genetic algorithm for interference mitigation. in Proceedings of the IEEE International Symposium on Circuits and systems (ISCAS), 20-23 May 2012, Seoul, Korea. Institute of Electrical and Electronics Engineers, Piscataway, pp. 2373-2376, 2012 IEEE International Symposium on Circuits and Systems (ISCAS 2012), Seoul, Korea, Republic of, 20/05/12. https://doi.org/10.1109/ISCAS.2012.6271774

A mm-wave analog adaptive array with genetic algorithm for interference mitigation. / Lu, C.; Wu, Y.; Mahmoudi, Reza; Matters - Kammerer, M.; Baltus, P.G.M.

Proceedings of the IEEE International Symposium on Circuits and systems (ISCAS), 20-23 May 2012, Seoul, Korea. Piscataway : Institute of Electrical and Electronics Engineers, 2012. p. 2373-2376.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AB - In the future dense 60 GHz wireless environments, co-channel interference (CCI) is a potential problem that degrades the link quality. In this paper, a genetic algorithm (GA) assisted analog adaptive array is proposed for 60 GHz indoor applications to mitigate the CCI. The GA optimizes the weights on each receiver path to attenuate CCI from different directions and improve signal-to-interference-plus-noise ratio (SINR) with robustness. We make two further improvements for better spatial re-use. First, we take into account the trade-off between array gain at the desired direction and interference suppression by proposing adaptivity on the weights control in GA. By adaptively increasing phase perturbation, near-optimum SINR can be achieved for different interference situations. Secondly, in some cases, the link requires less receiver paths than available, e.g. for line-of-sight links. So instead of using fixed antennas, we further propose antenna selection in the GA. A further improvement on spatial re-use can be achieved compared to arrays with fixed uniform spacing.

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Lu C, Wu Y, Mahmoudi R, Matters - Kammerer M , Baltus PGM. A mm-wave analog adaptive array with genetic algorithm for interference mitigation. In Proceedings of the IEEE International Symposium on Circuits and systems (ISCAS), 20-23 May 2012, Seoul, Korea. Piscataway: Institute of Electrical and Electronics Engineers. 2012. p. 2373-2376 https://doi.org/10.1109/ISCAS.2012.6271774