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S-ALOHA Systems With Successive Transmission: Emulating CSMA System

Authors
Seo, Jun-BaeJin, Hu
Issue Date
Nov-2021
Publisher
Institute of Electrical and Electronics Engineers
Keywords
Stability region; slotted ALOHA; successive transmission; backoff algorithm
Citation
IEEE Transactions on Communications, v.69, no.11, pp 7544 - 7558
Pages
15
Indexed
SCIE
SCOPUS
Journal Title
IEEE Transactions on Communications
Volume
69
Number
11
Start Page
7544
End Page
7558
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/3052
DOI
10.1109/TCOMM.2021.3104022
ISSN
0090-6778
1558-0857
Abstract
In slotted-ALOHA (S-ALOHA) system, users should contend for the channel to transmit a packet in their queue every single time, irrespective of how many packets they have in their queue. The maximum throughput of S-ALOHA system is known as e(-1) approximate to 0.3679 (packets/slot) for a large number of users. This work proposes a novel S-ALOHA system, where the user with a successful (re)transmission of the packet at the head of queue is allowed to keep on transmitting his packet with some reservation probability if his queue is not empty. We call this system S-ALOHA system with successive transmission (ST) and show that the throughput of the proposed system becomes one packet per slot as the reservation probability is raised. We analyze the stability region of S-ALOHA systems with ST for two heterogeneous users and also investigate the stability condition of the system with N symmetric users. Finally, we develop a Bayesian-learning backoff algorithm, with which users can control their (re)transmission with real-time estimation on the backlogged users. It is shown that the system with the proposed backoff algorithm can achieve the theoretical limit of the throughput.
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