The optimal multicopy Aloha

Author

Wong, Eric W M ; Yum, Tak-Shing P.

Author_Institution

Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong

Volume

39

Issue

6

fYear

1994

fDate

6/1/1994 12:00:00 AM

Firstpage

1233

Lastpage

1236

Abstract

Multicopy Aloha is a generalization of single-copy Aloha where multiple copies of a packet are transmitted without first learning whether the transmission of the first copy is successful or not. Different users in the system can transmit different number of copies. But the optimal multicopy policy is found to be of the “pure” type whereby all users transmit the same number of copies. To maximize the probability of successful transmission we found that the optimal copy number is one for the normalized channel traffic Λ in range 0.48<Λ⩽1, two for 0.28<Λ⩽0.48, three for 0.20<Λ⩽0.28, etc. Potential applications of multicopy Aloha include packet satellite systems, multichannel Aloha systems and reservation Aloha systems

Keywords

packet radio networks; packet switching; protocols; satellite relay systems; telecommunication channels; telecommunication traffic; multichannel Aloha systems; multicopy Aloha; normalized channel traffic; optimal multicopy policy; packet satellite systems; reservation Aloha systems; Adaptive control; Error correction; Manipulators; Notice of Violation; Robotics and automation; Robots; Robust control; Steady-state; Torque; Uncertainty;

fLanguage

English

Journal_Title

Automatic Control, IEEE Transactions on

Publisher

ieee

ISSN

0018-9286

Type

jour

DOI

10.1109/9.293184

Filename

293184