TY - GEN
T1 - Power Efficient Discontinuous Reception in THz and mmWave Wireless Systems
AU - Ali Shah, Syed Hashim
AU - Aditya, Sundar
AU - Dutta, Sourjya
AU - Slezak, Christopher
AU - Rangan, Sundeep
N1 - Funding Information:
ACKNOWLEDGEMENTS This work was supported by the National Science Foundation under Grants 1302336, 1564142, and 1547332, NIST, SRC and the industrial affiliates of NYU WIRELESS.
Publisher Copyright:
© 2019 IEEE.
PY - 2019/7
Y1 - 2019/7
N2 - Discontinuous reception (DRX), where a user equipment (UE) temporarily disables its receiver, is a critical power saving feature in modern cellular systems. DRX is likely to be particularly aggressively used in the mmWave and THz frequencies due to the high front end power consumption. A key challenge of DRX in these frequencies is that individual links are directional and highly susceptible to blockage. MmWave and THz UEs will therefore likely need to monitor multiple cells in multiple directions to ensure continuous reliable connectivity. This work proposes a novel, heuristic algorithm to dynamically select the cells to monitor to attempt to optimally trade-off link reliability and power consumption. The paper provides preliminary estimates of connected mode DRX mode consumption using detailed and realistic statistical models of blockers at both 28 and 140 GHz. It is found that although blockage dynamics are faster at 140 GHz, reliable connectivity at low power can be maintained with sufficient macro-diversity and link prediction.
AB - Discontinuous reception (DRX), where a user equipment (UE) temporarily disables its receiver, is a critical power saving feature in modern cellular systems. DRX is likely to be particularly aggressively used in the mmWave and THz frequencies due to the high front end power consumption. A key challenge of DRX in these frequencies is that individual links are directional and highly susceptible to blockage. MmWave and THz UEs will therefore likely need to monitor multiple cells in multiple directions to ensure continuous reliable connectivity. This work proposes a novel, heuristic algorithm to dynamically select the cells to monitor to attempt to optimally trade-off link reliability and power consumption. The paper provides preliminary estimates of connected mode DRX mode consumption using detailed and realistic statistical models of blockers at both 28 and 140 GHz. It is found that although blockage dynamics are faster at 140 GHz, reliable connectivity at low power can be maintained with sufficient macro-diversity and link prediction.
KW - Discontinuous reception (DRX)
KW - millimeter wave (mmWave) communications
KW - terahertz (THz) communications
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U2 - 10.1109/SPAWC.2019.8815451
DO - 10.1109/SPAWC.2019.8815451
M3 - Conference contribution
AN - SCOPUS:85072316379
T3 - IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
BT - 2019 IEEE 20th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 20th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2019
Y2 - 2 July 2019 through 5 July 2019
ER -