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Traditional communication systems adopt either Time Division Duplexing (TDD) or Frequency Division Duplexing (FDD). TDD requires guard interval and FDD needs guard band. Orthogonal Multicarrier Division Duplexing (MDD) is a new duplexing scheme, which can avoid both guard interval and guard band. In this paper, the authors propose a new MDD scheme with a group-wise subcarrier partition, which is more robust to the Inter-Carrier Interference (ICI) than the subcarrier-wise scheme, while keeping the same or better outage performance. They introduce somewhat modified block outage probability and block outage capacity metrics which are defined in such a way to facilitate the analysis and design of duplexing schemes in Point-To-Point (P2P) system.
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