Directional cell search for millimeter wave cellular systems

C. Nicolas Barati, S. Amir Hosseini, Sundeep Rangan, Pei Liu, Thanasis Korakis, Shivendra Panwar

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

Abstract

Millimeter wave (mmW) bands between 30 and 300 GHz are considered a promising candidate for next-generation cellular networks to relieve spectral congestion in conventional cellular frequencies. However, cellular communication at these frequencies will likely require highly directional transmissions to achieve suitable signal range. This reliance on directional beamforming complicates initial cell search since the mobile and base station must jointly search over a potentially large angular directional space to locate a suitable path to initiate communication. This paper proposes a directional cell search procedure where each base station periodically transmits synchronization signals in randomly varying directions. Detectors are derived for this synchronization signal based on a Generalized Likelihood Ratio Test (GLRT) for the case where (i) the mobile has only analog beamforming (where the mobile can 'look' in only direction at a time) and (ii) digital beamforming where the mobile has access to digital samples from all antennas. Simulations under realistic parameters demonstrate that mobiles may not be able to achieve suitable detection performance with analog beamforming alone. In contrast, digital beamforming offers dramatically better performance. We argue that the additional power consumption cost of digital beamforming can be offset by using very low quantization rates with minimal performance loss, thus arguing that low-rate fully digital front-ends may be a better design choice for directional cell search.

Original languageEnglish (US)
Title of host publication2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages120-124
Number of pages5
Volume2014-October
EditionOctober
DOIs
StatePublished - Oct 31 2014
Event2014 15th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2014 - Toronto, Canada
Duration: Jun 22 2014Jun 25 2014

Other

Other2014 15th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2014
CountryCanada
CityToronto
Period6/22/146/25/14

Fingerprint

Beamforming
Millimeter waves
Base stations
Synchronization
Quantization (signal)
Cellular radio systems
Electric power utilization
Antennas
Detectors
Communication
Costs

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Information Systems

Cite this

Barati, C. N., Hosseini, S. A., Rangan, S., Liu, P., Korakis, T., & Panwar, S. (2014). Directional cell search for millimeter wave cellular systems. In 2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2014 (October ed., Vol. 2014-October, pp. 120-124). [6941329] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SPAWC.2014.6941329

Directional cell search for millimeter wave cellular systems. / Barati, C. Nicolas; Hosseini, S. Amir; Rangan, Sundeep; Liu, Pei; Korakis, Thanasis; Panwar, Shivendra.

2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2014. Vol. 2014-October October. ed. Institute of Electrical and Electronics Engineers Inc., 2014. p. 120-124 6941329.

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

Barati, CN, Hosseini, SA, Rangan, S, Liu, P, Korakis, T & Panwar, S 2014, Directional cell search for millimeter wave cellular systems. in 2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2014. October edn, vol. 2014-October, 6941329, Institute of Electrical and Electronics Engineers Inc., pp. 120-124, 2014 15th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2014, Toronto, Canada, 6/22/14. https://doi.org/10.1109/SPAWC.2014.6941329
Barati CN, Hosseini SA, Rangan S, Liu P, Korakis T, Panwar S. Directional cell search for millimeter wave cellular systems. In 2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2014. October ed. Vol. 2014-October. Institute of Electrical and Electronics Engineers Inc. 2014. p. 120-124. 6941329 https://doi.org/10.1109/SPAWC.2014.6941329
Barati, C. Nicolas ; Hosseini, S. Amir ; Rangan, Sundeep ; Liu, Pei ; Korakis, Thanasis ; Panwar, Shivendra. / Directional cell search for millimeter wave cellular systems. 2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2014. Vol. 2014-October October. ed. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 120-124
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