TY - GEN
T1 - Low power analog-to-digital conversion in millimeter wave systems
T2 - Information Theory and Applications Workshop, ITA 2015
AU - Orhan, Oner
AU - Erkip, Elza
AU - Rangan, Sundeep
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/10/27
Y1 - 2015/10/27
N2 - The wide bandwidth and large number of antennas used in millimeter wave systems put a heavy burden on the power consumption at the receiver. In this paper, using an additive quantization noise model, the effect of analog-digital conversion (ADC) resolution and bandwidth on the achievable rate is investigated for a multi-antenna system under a receiver power constraint. Two receiver architectures, analog and digital combining, are compared in terms of performance. Results demonstrate that: (i) For both analog and digital combining, there is a maximum bandwidth beyond which the achievable rate decreases; (ii) Depending on the operating regime of the system, analog combiner may have higher rate but digital combining uses less bandwidth when only ADC power consumption is considered, (iii) digital combining may have higher rate when power consumption of all the components in the receiver front-end are taken into account.
AB - The wide bandwidth and large number of antennas used in millimeter wave systems put a heavy burden on the power consumption at the receiver. In this paper, using an additive quantization noise model, the effect of analog-digital conversion (ADC) resolution and bandwidth on the achievable rate is investigated for a multi-antenna system under a receiver power constraint. Two receiver architectures, analog and digital combining, are compared in terms of performance. Results demonstrate that: (i) For both analog and digital combining, there is a maximum bandwidth beyond which the achievable rate decreases; (ii) Depending on the operating regime of the system, analog combiner may have higher rate but digital combining uses less bandwidth when only ADC power consumption is considered, (iii) digital combining may have higher rate when power consumption of all the components in the receiver front-end are taken into account.
KW - Bandwidth
KW - MIMO
KW - Power demand
KW - Quantization (signal)
KW - Receivers
KW - Signal to noise ratio
UR - http://www.scopus.com/inward/record.url?scp=84961802029&partnerID=8YFLogxK
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U2 - 10.1109/ITA.2015.7308988
DO - 10.1109/ITA.2015.7308988
M3 - Conference contribution
AN - SCOPUS:84961802029
T3 - 2015 Information Theory and Applications Workshop, ITA 2015 - Conference Proceedings
SP - 191
EP - 198
BT - 2015 Information Theory and Applications Workshop, ITA 2015 - Conference Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 1 February 2015 through 6 February 2015
ER -