Design of LDPC Codes for the Unequal Power Two-User Gaussian Multiple Access Channel
Alexios Balatsoukas-Stimming, Athanasios P. Liavas · IEEE Wireless Communications Letters · 2018
In this letter, 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 approach 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.