Automatic-repeat-request error-control schemes
IEEE Communications Magazine
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This paper considers two models of BASIC mode data transmission: When we transmit data with length l1.(1) data are divided into N blocks and each block is transmitted individually 2.(2) data are divided into N sub-blocks and all sub-blocks are transmitted together. We derive total average transmission data lengths of each model and discuss optimal numbers N* and block length B* which minimize them. In model 1, the length of one block is approximately determined independently of l. It is shown in a numerical example that when l is large, model 2 is better than model 1.