An Information-Theoretic Analysis to Evaluate Joint Time & Space Splitting in Random Access Algorithms

  • Kamran Sayrafian-Pour
  • Anthony Ephremides


It is known that the average length of a CRP, i.e. Collision Resolution Period, in a random access algorithm is proportional to the mutual information between the packet’s arrival time and the set of all partitions of those arrival times that result in a resolution. Considering an ideal adaptive antenna, we can generalize this result for a two dimensional splitting algorithm in which resolutions of conflict are performed jointly in time and space. As a by-product of this result, the effectiveness of a multi-dimensional splitting algorithm is understood from an information theoretic view point.


Mutual Information Random Tree Packet Arrival Splitting Algorithm Multiple Access Channel 
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Copyright information

© Springer Science+Business Media New York 2000

Authors and Affiliations

  • Kamran Sayrafian-Pour
    • 1
  • Anthony Ephremides
    • 1
  1. 1.Electrical and Computer Engineering Department and Institute for Systems ResearchUniversity of MarylandCollege ParkUSA

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