Multiple-antenna post low noise amplifier RF combining

Kyung T. Jo, Young-Chai Ko, Chul Gyun Park, Joun S. Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

In this paper we propose the superheterodyne receiver beamforming architecture called Post-Low Noise Amplifier RF Combining (PLRC) to reduce the power consumption by using the single analog-to-digital converter (ADC). The RF chains in our proposed schemes includes the same number of the low noise amplifier (LNA) and the discrete-level phase shifters as the number of antennas followed by the single chain which consists of combiner, mixer, IF and the analog-to-digital converter (ADC). We propose simple channel estimation techniques based on the codebook stored in the baseband. We show from our some selected simulations that, when the exact phase information is available, the loss of beamforming gain of our proposed PLRC is not significant in terms of both signal-to-noise ratio (SNR) and bit error rate compared to the conventional baseband beamforming techniques while the power consumption of our proposed scheme can be much saved by using the single RF chain and single ADC. In addition, even for the use of the discrete phase level, the performance loss is negligible.

Original languageEnglish
Title of host publication2009 IEEE Globecom Workshops, Gc Workshops 2009
DOIs
Publication statusPublished - 2009 Dec 1
Event2009 IEEE Globecom Workshops, Gc Workshops 2009 - Honolulu, HI, United States
Duration: 2009 Nov 302009 Dec 4

Other

Other2009 IEEE Globecom Workshops, Gc Workshops 2009
CountryUnited States
CityHonolulu, HI
Period09/11/3009/12/4

Fingerprint

Low noise amplifiers
Digital to analog conversion
Beamforming
Antennas
Electric power utilization
Phase shifters
Channel estimation
Bit error rate
Signal to noise ratio

Keywords

  • Beamforming
  • Equal gain combining
  • Maximal ratio combining
  • Noise figure
  • RF combining
  • Single RF chain

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems
  • Software

Cite this

Jo, K. T., Ko, Y-C., Park, C. G., & Park, J. S. (2009). Multiple-antenna post low noise amplifier RF combining. In 2009 IEEE Globecom Workshops, Gc Workshops 2009 [5360684] https://doi.org/10.1109/GLOCOMW.2009.5360684

Multiple-antenna post low noise amplifier RF combining. / Jo, Kyung T.; Ko, Young-Chai; Park, Chul Gyun; Park, Joun S.

2009 IEEE Globecom Workshops, Gc Workshops 2009. 2009. 5360684.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jo, KT, Ko, Y-C, Park, CG & Park, JS 2009, Multiple-antenna post low noise amplifier RF combining. in 2009 IEEE Globecom Workshops, Gc Workshops 2009., 5360684, 2009 IEEE Globecom Workshops, Gc Workshops 2009, Honolulu, HI, United States, 09/11/30. https://doi.org/10.1109/GLOCOMW.2009.5360684
Jo KT, Ko Y-C, Park CG, Park JS. Multiple-antenna post low noise amplifier RF combining. In 2009 IEEE Globecom Workshops, Gc Workshops 2009. 2009. 5360684 https://doi.org/10.1109/GLOCOMW.2009.5360684
Jo, Kyung T. ; Ko, Young-Chai ; Park, Chul Gyun ; Park, Joun S. / Multiple-antenna post low noise amplifier RF combining. 2009 IEEE Globecom Workshops, Gc Workshops 2009. 2009.
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