Capacity of the wireless packet collision channel without feedback

  • Authors:
  • G. Thomas

  • Affiliations:
  • Dept. of Electr. & Comput. Eng., Louisiana Univ., Lafayette, LA

  • Venue:
  • IEEE Transactions on Information Theory
  • Year:
  • 2006

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Abstract

It is desirable in random-access protocols for wireless mobile communications to avoid the need for feedback and retransmissions. The pure ALOHA protocol can use erasure correction coding in place of retransmissions to maintain a throughput of 0.184. We show in this note that if we use error-correction coding (instead of erasure correction coding) throughput levels not less than 0.322 can be realized for asynchronous random access without feedback or retransmissions