Design of LDPC Codes for the Unequal Power Two-User Gaussian Multiple Access Channel

11/26/2017

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by   Alexios Balatsoukas-Stimming, et al.

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In this work, we describe an LDPC code design framework for the unequal power two-user Gaussian multiple access channel using EXIT charts. We show that the sum-rate of the LDPC codes designed using our proposed method can get close to the maximal sum-rate of the two-user Gaussian multiple access channel. Moreover, we provide numerical simulation results that demonstrate the excellent finite-length performance of the designed LDPC codes.