Presentation 2012-06-21
A Study on Transmission Power Control Considering Inter-Cell Interference for Non-orthogonal Access with MMSE-SIC in Cellular Uplink
Yuki ENDO, Yoshihisa KISHIYAMA, Kenichi HIGUCHI,
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Abstract(in English) This paper investigates the system-level throughput performance of the non-orthogonal access with minimum mean squared error-based liner filtering followed by the successive interference canceller (MMSE-SIC) in the cellular uplink. Although the non-orthogonal access with MMSE-SIC can achieve the multiuser capacity region in the multiple access channel (MAC), which should be beneficial to enhance the total user throughput and cell-edge user throughput simultaneously compared to the orthogonal access, the multiplexing of multiple users within the same frequency block may increase the inter-cell interference in the context of the cellular uplink. The aim of the transmission power control investigated in the paper is to mitigate the inter-cell interference increase due to non-orthogonal user multiplexing. Regarding the multiuser scheduling, we employ a proportional fair (PF)-based one to achieve a good tradeoff between the total user throughput and cell-edge user throughput. The simulation results show that non-orthogonal access with MMSE-SIC using the proposed transmission power control significantly enhances the system-level throughput performance compared to orthogonal access, which is widely used in 3.9 and 4G mobile communication systems.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) non-orthogonal multiple access / MMSE-SIC / inter-cell interference / transmission power control
Paper # RCS2012-46
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Committee RCS
Conference Date 2012/6/14(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study on Transmission Power Control Considering Inter-Cell Interference for Non-orthogonal Access with MMSE-SIC in Cellular Uplink
Sub Title (in English)
Keyword(1) non-orthogonal multiple access
Keyword(2) MMSE-SIC
Keyword(3) inter-cell interference
Keyword(4) transmission power control
1st Author's Name Yuki ENDO
1st Author's Affiliation Department of Electrical Engineering, Graduate School of Science and Technology, Tokyo University of Science()
2nd Author's Name Yoshihisa KISHIYAMA
2nd Author's Affiliation Radio Access Network Development Department, NTT DOCOMO, INC.
3rd Author's Name Kenichi HIGUCHI
3rd Author's Affiliation Department of Electrical Engineering, Graduate School of Science and Technology, Tokyo University of Science
Date 2012-06-21
Paper # RCS2012-46
Volume (vol) vol.112
Number (no) 89
Page pp.pp.-
#Pages 6
Date of Issue