SOME ARQ PROTOCOLS WITH FINITE RECEIVER BUFFER

In this paper, some new schemes for communication systems using error-detecting codes are described. These schemes employ hybrid strategies for the retransmission of the codewords detected in error, and combine the advantages of the go-back-N and selective protocols. The memory, introduced at the receiver side, enhances their performance with respect to the classical schemes. The results show that the protocols described in this paper permit the achievement of a net improvement with respect to other similar schemes.