Orthogonal multicarrier division duplexing for point-to-point communications

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, we 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. We 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. We give the closed-form of the block outage probability and derive the maximal capturable frequency diversity order based on outage probability. By analysis and simulation, it is verified that in P2P system, the proposed MDD scheme outperforms the existing schemes.