TY - GEN
T1 - Coded Energy-Efficient Beam-Alignment for Millimeter-Wave Networks
AU - Hussain, Muddassar
AU - Michelusi, Nicolo
N1 - Funding Information:
This research has been funded by NSF under grant CNS-1642982. Authors are with the School of Electrical and Computer Engineering, Purdue University. email: {hussai13,michelus}@purdue.edu.
Publisher Copyright:
© 2018 IEEE.
PY - 2019/2/5
Y1 - 2019/2/5
N2 - Millimeter-wave communications rely on narrow-beam transmissions to cope with the strong signal attenuation at these frequencies, thus demanding precise alignment between transmitter and receiver. However, the beam-alignment procedure may entail a huge overhead and its performance may be degraded by detection errors. This paper proposes a coded energy-efficient beam-alignment scheme, robust against detection errors. Specifically, the beam-alignment sequence is designed such that the error-free feedback sequences are generated from a codebook with the desired error correction capabilities. Therefore, in the presence of detection errors, the error-free feedback sequences can be recovered with high probability. The assignment of beams to codewords is designed to optimize energy efficiency, and a water-filling solution is proved. The numerical results with analog beams depict up to 4dB and 8dB gains over exhaustive and uncoded beam-alignment schemes, respectively.
AB - Millimeter-wave communications rely on narrow-beam transmissions to cope with the strong signal attenuation at these frequencies, thus demanding precise alignment between transmitter and receiver. However, the beam-alignment procedure may entail a huge overhead and its performance may be degraded by detection errors. This paper proposes a coded energy-efficient beam-alignment scheme, robust against detection errors. Specifically, the beam-alignment sequence is designed such that the error-free feedback sequences are generated from a codebook with the desired error correction capabilities. Therefore, in the presence of detection errors, the error-free feedback sequences can be recovered with high probability. The assignment of beams to codewords is designed to optimize energy efficiency, and a water-filling solution is proved. The numerical results with analog beams depict up to 4dB and 8dB gains over exhaustive and uncoded beam-alignment schemes, respectively.
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U2 - 10.1109/ALLERTON.2018.8635944
DO - 10.1109/ALLERTON.2018.8635944
M3 - Conference contribution
AN - SCOPUS:85062849650
T3 - 2018 56th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2018
SP - 407
EP - 412
BT - 2018 56th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 56th Annual Allerton Conference on Communication, Control, and Computing, Allerton 2018
Y2 - 2 October 2018 through 5 October 2018
ER -
