  One of the challenges often faced with wireless communication systems is its
limited range and data-rate. Distributed Transmit Beamforming (DTB) techniques
are being developed to address these two issues to provide reliable
connectivity from power-limited distributed users. This paper proposes an
adaptive Low Density Parity Check (LDPC) coding scheme for the DTB system. The
proposed scheme constructs powerful LDPC codes with varying code-rates and
block-lengths. This feature of the proposed scheme allows the DTB system to
optimise its system resources, improve throughput and communicate reliably
under large variation of different channel environments. The performance of
some of the codes constructed using the proposed scheme is evaluated and
compared with the uncoded and other coded-DTB systems. The results obtained
show large gains over the compared systems. The results also show that coding
applied to the DTB system drastically reduces the minimum number of distributed
transmit nodes required to achieve a target error-rate with the same energy per
information bit to noise power spectral density.
