B. J. Dempsey, M. T. Lucas, and A. C. Weaver. An Empirical Study of Packet Voice Distribution over a Campus-Wide Network. 19th IEEE Conference on Local Computer Networks, October 1994. Home/Search Document Details and Download
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Survey of Error Recovery Techniques for IP-based Audio-Visual .. - Carle, Biersack (1997) (34 citations) (Correct)
....receiver. Such buffering will increase the end to end latency and may be in conflict with the real time requirement. 1.5 Model of the End to End Delay of a CM Data Transmission In the past it was frequently debated whether real time applications can be based on protocols with retransmissions. In [16], it was shown by simulation that a real time retransmission scheme is feasible within the end to end delay constraints of packet voice transmissions for typical LANs (Local Area Networks) even for relatively high network access delays and protocol processing delays in transmitter and receiver. ....
....approaches for transport protocols that employ ARQ and FEC for providing reliable real time multicast services are discussed. 4.1 ARQ based Error Control for CM Data Transmission 4.1. 1 Audio Transmission Dempsey and Liebeherr were the first to investigate retransmission for CM applications [16, 17] for the case of a unicast interactive voice transmission over local area networks. Their approach for a protocol that performs NAK initiated retransmissions within a given delay budget is called SlackARQ. Given round trip times in the order of 10 msec and inter packet gaps of 20 msec, Dempsey ....
B. J. Dempsey, M. T. Lucas, and A. C. Weaver, "An Empirical Study of Packet Voice Distribution Over a Campus-Wide Network", In Proceedings of the IEEE 19th Conference on Local Computer Networks, October 1994, Minneapolis, Minnesota, 1994.
Efficient Data Distribution in Large-Scale Multicast Networks - Lucas (1998) (5 citations) Self-citation (Lucas Weaver) (Correct)
....and bytes per second) and drop rates (due to output port buffer overflows) for the 14 Ethernet and 2 FDDI interfaces presented in Table 3.1. The table was constructed by using the simple network management protocol (SNMP) to query the Olsson router once per second during a weekday 1 Refer to [38] for detailed analysis of transmission delay and drops as well as details concerning the experiment. 3.3. Campus and Local Area Traffic Model 35 0 50 100 150 200 0 50 100 Elapsed Time (sec) 200 250 300 150 Roundtrip Times (ms) Figure 3.4: Roundtrip times over a 2 hop path within ....
....3:8 3:1 0:62 Ethernet Interface 12 243:0 83:7 0:75 Ethernet Interface 13 18:4 5:4 0:03 Ethernet Interface 14 14:1 6:2 0:1 FDDI Interface 1 359:2 86:0 0 FDDI Interface 2 487:1 80:8 0 Table 3.1: Olsson router utilization and drop statistics. end packet delays of the UVAnet traces presented in [38]. Figures 3.4 and 3.5 show that transmission delays over a two and three hop route are steady except for occasional large delays (up to 250 ms. We ignore the outlying delay spikes and assign each packet a uniform delay between 1 Gamma 3 ms at each output port. Like the loss model, delays are not ....
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B. J. Dempsey, M. T. Lucas, and A. C. Weaver. An Empirical Study of Packet Voice Distribution over a Campus-Wide Network. 19th IEEE Conference on Local Computer Networks, October 1994.
Xpress Transport Protocol Version 4 - Alfred Weaver (2 citations) Self-citation (Weaver) (Correct)
....Selective retransmission will be useful for WANs involving satellite links. Historically, retransmission has been regarded as either inappropriate or ineffective for jitter control in multimedia systems, and this may well be true if TCP style retransmission is used. However, we have shown in [Dempsey94a,b,c,d] that retransmission, layered on top of an efficient 10 retransmission mechanism like that in XTP, can be very effective for controlling packet loss in delay sensitive streams. Selective Acknowledgment Acknowledging every packet assumes that the network often loses packets, assumes that the ....
Dempsey, B.J., Lucas, M.T., and Weaver, A.C., "An Empirical Study of Packet Voice Distribution over a Campus-Wide Network," 19th IEEE Local Computer Networks Conference, Minneapolis, Minnesota, October 1994.
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