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A new technique is proposed for efficient encoding of low density parity check (LDPC) codes using the concept of approximate lower triangulation (ALT). Parity check matrix is preprocessed and encoded in O(n) complexity. This encoding technique is applied in the IEEE 802.11n based H matrix where the complexity is compared with the Richardson algorithm. The proposed adaptive message length (AML) encoding...
Energy efficient transmission with fairly high capacity is an attractive feature for energy constraint wireless sensor network. This opens a door for the outage analysis keeping the energy efficient performance active. We propose to employ LDPC codes to provide reliable communication while saving power in the sensor networks. We derive the ergodic and outage capacity for a cluster head to DGN transmission...
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