Abstract
In uplink multiuser systems, different timing offset (TO) and carrier frequency offset (CFO) of different users cause multiuser interference (MUI) to desired user. In this paper, we propose an optimal receiver filter for uplink transmission with generalized frequency division multiplexing (GFDM) when TO and CFO of different users exist. Proposed optimal receiver filter maximizes signal-to-interference ratio (SIR) of desired user with TO and CFO in Rayleigh channel. Based on SIR expression derived in closed form in the presence of TO and CFO, we obtain the optimal receiver filter by solving Rayleigh quotient problem. We show from the simulation that the proposed receiver filter effectively eliminates MUI caused by TO within cyclic prefix range and CFO compared to the conventional zero-forcing filter.
Original language | English |
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Title of host publication | 2018 IEEE Wireless Communications and Networking Conference, WCNC 2018 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 1-6 |
Number of pages | 6 |
ISBN (Electronic) | 9781538617342 |
DOIs | |
Publication status | Published - 2018 Jun 8 |
Event | 2018 IEEE Wireless Communications and Networking Conference, WCNC 2018 - Barcelona, Spain Duration: 2018 Apr 15 → 2018 Apr 18 |
Publication series
Name | IEEE Wireless Communications and Networking Conference, WCNC |
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Volume | 2018-April |
ISSN (Print) | 1525-3511 |
Other
Other | 2018 IEEE Wireless Communications and Networking Conference, WCNC 2018 |
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Country/Territory | Spain |
City | Barcelona |
Period | 18/4/15 → 18/4/18 |
Bibliographical note
Funding Information:ACKNOWLEDGMENT This work was supported by Institute for Information & communications Technology Promotion(IITP) grant funded by the Korea government(MSIT) (2015-0-00300, Multiple Access Technique with Ultra-Low Latency and High Efficiency for Tactile Internet Services in IoT Environments).
Publisher Copyright:
© 2018 IEEE.
Keywords
- Carrier frequency offset
- Filter design
- GFDM
- Interference cancellation
- MUI
- Multiuser
- SIR
- Timing offset
ASJC Scopus subject areas
- General Engineering