O
O.Y. Takeshita
Researcher at Ohio State University
Publications - 15
Citations - 1195
O.Y. Takeshita is an academic researcher from Ohio State University. The author has contributed to research in topics: Turbo code & Permutation polynomial. The author has an hindex of 11, co-authored 15 publications receiving 1180 citations.
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Proceedings ArticleDOI
Optimal rate allocation for superposition coding in quasi-static fading channels
TL;DR: Results show 2-level superposition coding is adequate to achieve most of the throughput gain in a quasi-static Rayleigh fading channel.
Journal ArticleDOI
A rank criterion for QAM space-time codes
TL;DR: An algebraic rank theory is developed to ensure full space diversity for 2/sup 2k/ quadrature and amplitude modulated (QAM) codes for any positive integer k to design codes with higher bandwidth efficiency.
Journal ArticleDOI
On quadratic inverses for quadratic permutation polynomials over integer rings
Jonghoon Ryu,O.Y. Takeshita +1 more
TL;DR: All but one of the quadratic interleavers proposed earlier by Sun and Takeshita are found to admit a quadRatic inverse, although none were explicitly designed to do so.
Proceedings ArticleDOI
Space-time codes performance criteria and design for frequency selective fading channels
TL;DR: The design criteria are derived first and then the algebraic /spl Sigma//sub 0/-rank theory is applied to show how to design codes to take advantage of space and frequency diversity simultaneously.
Proceedings ArticleDOI
A rank criterion for QAM space-time codes with application to turbo coding
TL;DR: Full space diversity parallel concatenated turbo codes are proposed to use in a multiple element antenna environment and simulations show it has robust performance at both quasi-static fading channel and time varying fading channel.