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A new system of transmission and reception with security and reliability requests for the networks of fourth generation (4G) is proposed. The security is provided by elliptical curve encryption, system reliability is given by the encoding of irregular low density parity check code (LDPC) and the interleaver. The construction of the irregular LDPC used a technique of low level error, the decoding utilized...
In this paper, two retransmission schemes that rely on reliable reverse link for error-free feedback message delivery are proposed. Unlike the conventional automatic repeat request schemes, the proposed schemes do not require the use of cyclic-redundancy-check bits for error detection. The first scheme is based on choosing one or more predefined packet segments for retransmission. In the second scheme,...
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