Presentation 2020-11-05
[Invited Talk] A study on generalization of hypersphere modulation
Sho Kakuwa, Masahiro Fujii,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this paper, we propose new modulation schemes in multi-dimensional Euclidean space under the condition that all symbols are on a hypersphere. In the proposed symbol design, the symbols are assigned on vertices of a twisted and crushed hypercube. Moreover, it is possible to generalize the proposed symbol designs to any dimension. The minimum symbol distance of the proposed design grows with the increasing number of dimensions in comparison with the conventional QPSK. By theoretical analysis based on a upper bound and computer simulations, we show that the proposed symbol design in 8-dimensional space can reduce the required $E_b/N_0$ by more than 0.8 dB at $10^{-7}$ of the BER.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Multi-dimensional Euclidean space / QPSK / Minimum distance / hypersphere / symbol design / Bit Error Rate
Paper # CS2020-48
Date of Issue 2020-10-29 (CS)

Conference Information
Committee CS
Conference Date 2020/11/5(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online + Central Community Center, Nonoichi Community Center
Topics (in Japanese) (See Japanese page)
Topics (in English) Broadband access, Home network, Network service, Communication applications, etc.
Chair Jun Terada(NTT)
Vice Chair Daisuke Umehara(Kyoto Inst. of Tech.)
Secretary Daisuke Umehara(Mitsubishi Electric)
Assistant Hiroyuki Saito(OKI) / Takahiro Yamaura(Toshiba)

Paper Information
Registration To Technical Committee on Communication Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Invited Talk] A study on generalization of hypersphere modulation
Sub Title (in English)
Keyword(1) Multi-dimensional Euclidean space
Keyword(2) QPSK
Keyword(3) Minimum distance
Keyword(4) hypersphere
Keyword(5) symbol design
Keyword(6) Bit Error Rate
1st Author's Name Sho Kakuwa
1st Author's Affiliation Utsunomiya University(Utsunomiya Univ.)
2nd Author's Name Masahiro Fujii
2nd Author's Affiliation Utsunomiya University(Utsunomiya Univ.)
Date 2020-11-05
Paper # CS2020-48
Volume (vol) vol.120
Number (no) CS-223
Page pp.pp.7-11(CS),
#Pages 5
Date of Issue 2020-10-29 (CS)