Title :
Optimal capacity of p-persistent CSMA protocols
Author :
Bruno, Raffaele ; Conti, Marco ; Gregori, Enrico
Author_Institution :
IIT Inst., Italian Nat. Res. Council, Pisa, Italy
fDate :
3/1/2003 12:00:00 AM
Abstract :
We deal with the characterization and computation of the p value, say p/sub opt/, corresponding to the maximum protocol capacity in p-persistent carrier-sense multiaccess (CSMA) protocols. The contribution of this paper 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/sub opt/. Second, we provide closed formulas for the p/sub opt/, and we show that the optimal capacity state, given the message length distribution, is characterized by an invariant figure: the Mp/sub opt/ product.
Keywords :
access protocols; carrier sense multiple access; optimisation; statistical analysis; carrier-sense multiaccess protocols; heuristic formula; maximum protocol capacity; message length distribution; optimal capacity; p-persistent CSMA protocols; Access protocols; Equations; Multiaccess communication; Random variables;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2002.808371