IEICE TRANSACTIONS on Communications
A Request Cluster Allocation Method for DOCSIS CATV/HFC Networks
Summary :
As an access network to the Internet, CATV/HFC network has been widespread recently. Such a network employs a reservation access method under which reservation and data transmission periods appear by turns. Before data transmission, a station must send a request in a random access manner during the reservation period called a request cluster. If the cluster size is large, the probability of request collision occurrence becomes small. A large cluster size however increases the packet transmission delay. Moreover the throughput decreases since vacant duration of reservation period increases. DOCSIS, a de facto standard for the networks, employs the binary back-off method for request cluster allocation. Since that method normally allocates unnecessary large request cluster, the transmission delay increases under heavy load conditions. In this paper, we propose a request cluster allocation method which dynamically changes the cluster size according to the load conditions. In order to evaluate performance of the proposed method, we build a queuing model and execute computer simulation. Simulation result shows that the proposed method provides smaller delay than the binary back-off method.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E87-B No.2 pp.286-293
- Publication Date
- 2004/02/01
- Publicized
- Online ISSN
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- Type of Manuscript
- PAPER
- Category
- Network
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Tomoya SAITO, Kyoko KATO, Hiroshi INAI, "A Request Cluster Allocation Method for DOCSIS CATV/HFC Networks" in IEICE TRANSACTIONS on Communications,
vol. E87-B, no. 2, pp. 286-293, February 2004, doi: .
Abstract: As an access network to the Internet, CATV/HFC network has been widespread recently. Such a network employs a reservation access method under which reservation and data transmission periods appear by turns. Before data transmission, a station must send a request in a random access manner during the reservation period called a request cluster. If the cluster size is large, the probability of request collision occurrence becomes small. A large cluster size however increases the packet transmission delay. Moreover the throughput decreases since vacant duration of reservation period increases. DOCSIS, a de facto standard for the networks, employs the binary back-off method for request cluster allocation. Since that method normally allocates unnecessary large request cluster, the transmission delay increases under heavy load conditions. In this paper, we propose a request cluster allocation method which dynamically changes the cluster size according to the load conditions. In order to evaluate performance of the proposed method, we build a queuing model and execute computer simulation. Simulation result shows that the proposed method provides smaller delay than the binary back-off method.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e87-b_2_286/_p
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@ARTICLE{e87-b_2_286,
author={Tomoya SAITO, Kyoko KATO, Hiroshi INAI, },
journal={IEICE TRANSACTIONS on Communications},
title={A Request Cluster Allocation Method for DOCSIS CATV/HFC Networks},
year={2004},
volume={E87-B},
number={2},
pages={286-293},
abstract={As an access network to the Internet, CATV/HFC network has been widespread recently. Such a network employs a reservation access method under which reservation and data transmission periods appear by turns. Before data transmission, a station must send a request in a random access manner during the reservation period called a request cluster. If the cluster size is large, the probability of request collision occurrence becomes small. A large cluster size however increases the packet transmission delay. Moreover the throughput decreases since vacant duration of reservation period increases. DOCSIS, a de facto standard for the networks, employs the binary back-off method for request cluster allocation. Since that method normally allocates unnecessary large request cluster, the transmission delay increases under heavy load conditions. In this paper, we propose a request cluster allocation method which dynamically changes the cluster size according to the load conditions. In order to evaluate performance of the proposed method, we build a queuing model and execute computer simulation. Simulation result shows that the proposed method provides smaller delay than the binary back-off method.},
keywords={},
doi={},
ISSN={},
month={February},}
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TY - JOUR
TI - A Request Cluster Allocation Method for DOCSIS CATV/HFC Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 286
EP - 293
AU - Tomoya SAITO
AU - Kyoko KATO
AU - Hiroshi INAI
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E87-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2004
AB - As an access network to the Internet, CATV/HFC network has been widespread recently. Such a network employs a reservation access method under which reservation and data transmission periods appear by turns. Before data transmission, a station must send a request in a random access manner during the reservation period called a request cluster. If the cluster size is large, the probability of request collision occurrence becomes small. A large cluster size however increases the packet transmission delay. Moreover the throughput decreases since vacant duration of reservation period increases. DOCSIS, a de facto standard for the networks, employs the binary back-off method for request cluster allocation. Since that method normally allocates unnecessary large request cluster, the transmission delay increases under heavy load conditions. In this paper, we propose a request cluster allocation method which dynamically changes the cluster size according to the load conditions. In order to evaluate performance of the proposed method, we build a queuing model and execute computer simulation. Simulation result shows that the proposed method provides smaller delay than the binary back-off method.
ER -
English
