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The protograph LDPC (P-LDPC) coded modulation is an efficient scheme using the variable degree matched mapping (VDMM) based on the protograph structure. We propose a VDMM optimization strategy, as a crucial part for the P-LDPC coded modulation, by checking different permutation patterns between the variable nodes in protograph and the modulated bits. Then,(More)
We investigate the localization of multiple signal sources based on sensors performing time-of-arrival (TOA) measurement in wireless sensor networks. Moving beyond the widely studied single source localization problem, concurrently active multiple sources substantially complicate the problem since anchored sensor nodes are unaware of associations between(More)