Presentation 2003/7/11
Stability of UDP packet exchange in ad hoc wireless groups
Satoko ITAYA, Masakatsu KOSUGA, Peter DAVIS,
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Abstract(in English) We study limits of stability in ad hoc wireless groups of nodes sending each other unicast streams of UDP packets using a CSMA/CA protocol. We show that even in small ad hoc groups where the packet generation rate is constant and below the level for saturation of throughput, there can be large fluctuations in packet arrival intervals due to the intrinsic dynamics of backoff and retransmissions which can occur when doing unicast with CSMA/CA. We show that the conditions for the onset of large fluctuations, and the limits of stable regimes of operation, can be theoretically estimated. Moreover, we discuss the significance of this type of fluctuation on real-time applications such as Voice over IP (VoIP) and network music performances using MIDI.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) wireless ad hoc group / 802.11 / fluctuation / real-time application
Paper # NS2003-83,RCS2003-106
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Committee NS
Conference Date 2003/7/11(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Stability of UDP packet exchange in ad hoc wireless groups
Sub Title (in English)
Keyword(1) wireless ad hoc group
Keyword(2) 802.11
Keyword(3) fluctuation
Keyword(4) real-time application
1st Author's Name Satoko ITAYA
1st Author's Affiliation ATR Adaptive Communication Research Laboratories()
2nd Author's Name Masakatsu KOSUGA
2nd Author's Affiliation ATR Adaptive Communication Research Laboratories
3rd Author's Name Peter DAVIS
3rd Author's Affiliation ATR Adaptive Communication Research Laboratories
Date 2003/7/11
Paper # NS2003-83,RCS2003-106
Volume (vol) vol.103
Number (no) 202
Page pp.pp.-
#Pages 4
Date of Issue