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Capacity of the wireless packet collision channel without feedback

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1 Author(s)
Thomas, G. ; Dept. of Electr. & Comput. Eng., Louisiana Univ., Lafayette, LA, USA

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

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Information Theory, IEEE Transactions on  (Volume:46 ,  Issue: 3 )