supported by the National Natural Science Foundation of China (6035003,60572149)
This paper studies the resource allocation for a multi-user two-way amplify-and-forward (AF) relay network over orthogonal frequency-division multiplexing (OFDM) technology, where all users communicate with their ...
supported by National Natural Science Foundation of China (Grant Nos. 60573034 and 60572149)
A simple method for determining the threshold of irregular LDPC codes over the binary erasure channel (BEC) under message-passing decoding is proposed. An exact formula for calculating the threshold of irregular LDP...
This work is supported by the National Natural Science Foundation of China (No.U0635003 and No.60572149).
Three classes of structured regular Low- density parity-check (LDPC) codes with girth at least 6 are constructed from frequency-hopping sequences. The parity-check matrices of these codes have uniform row and column...