ملخص: In this letter we deal with the characterization and computation of the p value, say p<subscript>o<subscript>p<subscript>t, corresponding to the maximum protocol capacity in p-persistent carrier-sense multiaccess (CSMA) protocols. The contribution of this letter is twofold. First, we give an analytical justification, and a numerical validation of a heuristic formula widely used in the literature to characterize the p<subscript>o<subscript>p<subscript>t. Second, we provide closed formulas for the p<subscript>o<subscript>p<subscript>t, and we show that the optimal capacity state, given the message length distribution, is characterized by an invariant figure: the Mp<subscript>o<subscript>p<subscript>t product.

لغة: إنجليزية