Accelerating Channel Estimation and Demodulation of Uplink OFDM symbols for Large Scale Antenna Systems using GPU

Bhargav Gokalgandhi, Christina Segerholm, Nilanjan Paul, Ivan Seskar

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

Abstract

Increase in the number of antennas in the front-end increases the volume of data to be processed at the back-end. This establishes a need for acceleration in back-end processing. To solve the issue of high volume data processing at back-end, a GPU is utilized. Acceleration for Least Squares channel estimation and demodulation of uplink OFDM symbols is provided by using a combination of CPU and GPU at the back-end. Single user uplink scenario is implemented in near real-time manner using the USRP platform present in the Large scale antenna systems in ORBIT Testbed. The number of antennas and FFT length are varied to provide different scenarios for comparison. The performance of both CPU and GPU is compared for each process.

Original languageEnglish (US)
Title of host publication2019 International Conference on Computing, Networking and Communications, ICNC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages955-959
Number of pages5
ISBN (Electronic)9781538692233
DOIs
StatePublished - Apr 8 2019
Event2019 International Conference on Computing, Networking and Communications, ICNC 2019 - Honolulu, United States
Duration: Feb 18 2019Feb 21 2019

Publication series

Name2019 International Conference on Computing, Networking and Communications, ICNC 2019

Conference

Conference2019 International Conference on Computing, Networking and Communications, ICNC 2019
CountryUnited States
CityHonolulu
Period2/18/192/21/19

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Software
  • Hardware and Architecture

Keywords

  • GPU
  • Large scale antenna systems
  • Massive MIMO
  • OFDM
  • Software Defined Radio
  • acceleration

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  • Cite this

    Gokalgandhi, B., Segerholm, C., Paul, N., & Seskar, I. (2019). Accelerating Channel Estimation and Demodulation of Uplink OFDM symbols for Large Scale Antenna Systems using GPU. In 2019 International Conference on Computing, Networking and Communications, ICNC 2019 (pp. 955-959). [8685544] (2019 International Conference on Computing, Networking and Communications, ICNC 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICCNC.2019.8685544