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 language | English |
|---|---|
| Title of host publication | 2009 IEEE Globecom Workshops, Gc Workshops 2009 |
| DOIs | |
| Publication status | Published - 2009 Dec 1 |
| Event | 2009 IEEE Globecom Workshops, Gc Workshops 2009 - Honolulu, HI, United States Duration: 2009 Nov 30 → 2009 Dec 4 |
Other
| Other | 2009 IEEE Globecom Workshops, Gc Workshops 2009 |
|---|---|
| Country | United States |
| City | Honolulu, HI |
| Period | 09/11/30 → 09/12/4 |
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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
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 proceeding › Conference contribution
}
TY - GEN
T1 - Multiple-antenna post low noise amplifier RF combining
AU - Jo, Kyung T.
AU - Ko, Young-Chai
AU - Park, Chul Gyun
AU - Park, Joun S.
PY - 2009/12/1
Y1 - 2009/12/1
N2 - 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.
AB - 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.
KW - Beamforming
KW - Equal gain combining
KW - Maximal ratio combining
KW - Noise figure
KW - RF combining
KW - Single RF chain
UR - http://www.scopus.com/inward/record.url?scp=77951167700&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77951167700&partnerID=8YFLogxK
U2 - 10.1109/GLOCOMW.2009.5360684
DO - 10.1109/GLOCOMW.2009.5360684
M3 - Conference contribution
AN - SCOPUS:77951167700
SN - 9781424456260
BT - 2009 IEEE Globecom Workshops, Gc Workshops 2009
ER -