Presentation 2017-03-02
A Contention Resolution Scheme with Parameter Adjustment Mechanism for Multi-Channel CATV Networks
Tomoya Saito, Hiroshi Inai,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In DOCSIS, an upstream channel is shared by many stations, and the stations send out their data PDUs according to the random reservation manner. Before data transmission, the station must send a request in a random access manner during the reservation period. Recently, DOCSIS has introduced a concept in that the multiple upstream channels can be combined together to get greater aggregated bandwidth. However, DOCSIS does not provide a suitable contention resolution scheme for the aggregated upstream channel. On the other hand, for single upstream channel, DOCSIS employs the Truncated Binary Exponential Back-off scheme for request period allocation. But, that provides too small/large request periods which are used in the random reservation, the delay increases rapidly as the offered traffic increases. In this paper, we propose a contention resolution scheme for multi-channel CATV networks. Our scheme estimates the offered traffic of upstream channel according to success/failure condition of bnadwidth reservation, and dynamically adjusts a parameter used to allocate the request period. In order to evaluate performance of the proposed scheme, we build a queueing model and execute computer simulation. Simulation results present that the proposed scheme provides the smaller delay than the conventional scheme.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Contention resolution / Random reservation / Parameter adjustment / CATV networks
Paper # IN2016-106
Date of Issue 2017-02-23 (IN)

Conference Information
Committee NS / IN
Conference Date 2017/3/2(2days)
Place (in Japanese) (See Japanese page)
Place (in English) OKINAWA ZANPAMISAKI ROYAL HOTEL
Topics (in Japanese) (See Japanese page)
Topics (in English) General
Chair Hideki Tode(Osaka Pref. Univ.) / Katsunori Yamaoka(Tokyo Inst. of Tech.)
Vice Chair Yoshikatsu Okazaki(NTT) / Takuji Kishida(NTT)
Secretary Yoshikatsu Okazaki(Kyushu Inst. of Tech.) / Takuji Kishida(NTT)
Assistant Shohei Kamamura(NTT) / Kunitake Kaneko(Keio Univ.) / Takashi Natsume(NTT)

Paper Information
Registration To Technical Committee on Network Systems / Technical Committee on Information Networks
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Contention Resolution Scheme with Parameter Adjustment Mechanism for Multi-Channel CATV Networks
Sub Title (in English)
Keyword(1) Contention resolution
Keyword(2) Random reservation
Keyword(3) Parameter adjustment
Keyword(4) CATV networks
1st Author's Name Tomoya Saito
1st Author's Affiliation Yamaguchi University(Yamaguchi Univ.)
2nd Author's Name Hiroshi Inai
2nd Author's Affiliation Okayama Prefectural University(Okayama Prefectural Univ.)
Date 2017-03-02
Paper # IN2016-106
Volume (vol) vol.116
Number (no) IN-485
Page pp.pp.55-60(IN),
#Pages 6
Date of Issue 2017-02-23 (IN)