Collision-Resolution Algorithms and Random-Access Communications
Communications engineers have a long acquaintance with the “multiple-access” problem, i.e., the problem of providing the means whereby many senders of information can share a common communications resource. The “classical” solution has been to do some form of multiplexing (e.g., time-division multiplexing (TDM) or frequency-division multiplexing (FDM) in order to parcel out the resource equitably among the senders.) A fixed division of the resources, however, becomes inefficient when the requirements of the users vary with time. The classical “fix” for the multiplexing solution is to add some form of demand-assignment so that the particular division of resources can be adapted to meet the changing requirements. Such demand-assigned multiplexing techniques have proved their worth in a myriad of multiple-access applications.
KeywordsFeedback Channel Channel Error Empty Slot Transmission Slot Arrival Epoch
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