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- W4299687369 abstract "In this paper, we study the degrees of freedom (DoF) of the MIMO relay networks. We start with a general Y channel, where each user has $M_i$ antennas and aims to exchange messages with the other two users via a relay equipped with $N$ antennas. Then, we extend our work to a general 4-user MIMO relay network. Unlike most previous work which focused on the total DoF of the network, our aim here is to characterize the achievable DoF region as well. We develop an outer bound on the DoF region based on the notion of one sided genie. Then, we define a new achievable region using the Signal Space Alignment (SSA) and the Detour Schemes. Our achievable scheme achieves the upper bound for certain conditions relating $M_i$'s and $N$." @default.
- W4299687369 created "2022-10-02" @default.
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- W4299687369 date "2013-07-02" @default.
- W4299687369 modified "2023-09-29" @default.
- W4299687369 title "Achievable Degrees of Freedom Region of the MIMO Relay Networks using the Detour Schemes" @default.
- W4299687369 doi "https://doi.org/10.48550/arxiv.1307.0685" @default.
- W4299687369 hasPublicationYear "2013" @default.
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