Cell voice transport considerations for ATM

Gedeon,; Narayanan,; Vreugdenhil,

doi:10.1109/ccece.1994.405754

Cited by 1 publication

(2 citation statements)

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“…These methods can reduce the packetization delay to 1 or 2 ms, but result in reduced efficiency or increased switching complexity. Regardless of these alternatives, the advent of compressed voice techniques and their extended packetization delays has prompted industry analysts to concede the long term need for echo cancellation hardware for voice over ATM [18], at least until such time that digital loops are universally deployed.…”

Section: A Servicing Different Implementation Alternatives For Voicementioning

confidence: 99%

“…The lower bound has been proposed by ITU-T for terrestrial connections. A much stricter two-way delay bound (15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30) ms is required for voice calls using analog terminals, which includes 95 of all phones [2]. Longer delays generate significant talker echo due to impedance mismatches at the subscriber loop [5].…”

Section: A Central Goal Of Asynchronous Transfer Mode (Atm) Ismentioning

confidence: 99%

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An efficient ATM voice service with flexible jitter and delay guarantees

Pocher

Leung

Gillies

1999

IEEE J. Select. Areas Commun.

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Abstract-A transmission and multiplexing strategy appropriate for voice over asynchronous transfer mode (ATM), called delayed frame queueing (DFQ), is proposed. This frame-based strategy has features in common with the synchronous transfer mode and is thus well suited to service synchronous applications such as voice, while retaining the statistical multiplexing capabilities of ATM. In particular, the DFQ service discipline can provide explicit and nontrivial bounds for queue delay and jitter, for both bursty as well as continuous traffic streams. Furthermore, the DFQ discipline can combine a wide range of delay and jitter bounds while also managing the distribution of quality of service violations among the traffic streams when congestion occurs. Jitter control is performed at the network periphery and thus does not negatively influence multiplexing gain at intermediate nodes. This efficient strategy has major implications in terms of the preferred alternatives chosen by clients when implementing source clock recovery for voice. DFQ allows the entire range of implementation alternatives for voice over ATM to be appropriately serviced, such as ATM adaptation layer types 1 and 2 (AAL1/2), adaptive playout, and immediate playout.

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Section: A Servicing Different Implementation Alternatives For Voicementioning

confidence: 99%