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Queueing Analysis of CDMA Unslotted ALOHA Systems with Finite Buffers
Okada, Hiraku
14698
Yamazato, Takaya
14699
Katayama, Masaaki
14700
Ogawa, Akira
14701
CDMA unslotted ALOHA
finite buffer capacity
packet queueing
Markov chain
CDMA unslotted ALOHA system with finite size of queueing buffers is discussed in this paper. We introduce an analytical model in which the system is divided into two Markov chains; one is in the user part, and the other is in the channel part. In the user part, we can model the queueing behavior of the user station as an M/G/I/B queue. In the channel part, we can consider the number of simultaneously transmitted packets as an M1+M2/D/∞//K queue. We analyze the queueing system by using this analytical model, and evaluate the effect of buffer capacity in terms of the throughput, the rejection probability and the average delay. As a result, increase in the buffer size brings about an improvement in the grade of service in terms of higher throughput and lower rejection probability.
journal article
IEICE
1998-10
application/pdf
IEICE Transactions on Fundamentals
E81-A
2083
2091
http://hdl.handle.net/2237/7206
0916-8508
https://nagoya.repo.nii.ac.jp/record/5600/files/E81-A-2083.pdf
eng
http://search.ieice.org/bin/summary.php?id=e81-a_10_2083&category=A&year=1998&lang=E&abst=&auth=1
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