| S. Mascolo, C. Casetti, M. Gerla, and S.S. Lee, M. Sanadidi, "TCP Westwood: Congestion Control with Faster Recovery," UCLA CS Technical Report #2000. |
....reduced to the minimum. This is not a desirable reaction in this narrow band environment. We would like to avoid the repeated transmission of TCP segments, since they add to the bandwidth waste. Several methods have been proposed to enhance the performance of TCP over error prone wireless links [3, 6, 27, 41, 58]. Some require changes of the current implementations of TCP on either side, and some improvements can be done without such changes. Improvements that do not require changes at the end points, will in some way interfere with the philosophy of end to end connectivity. Di erent approaches to TCP ....
....decreasing the risk of re transmitting redundant segments or increasing the delay. TCP Westwood In this new implementation of TCP, the idea is to keep an estimate of the throughput bandwidth at the sender, and use this as back o after a loss is discovered, instead of resorting to slow start [41]. 4.2 RTP UDP For real time conversational applications, the bene ts related to TCP ow control, are not required. Nor are the delays from slow start mechanisms acceptable. If a segment of the data is lost during transmission, there s no point in notifying the source, since the information will ....
S. Mascolo, C. Casetti, M. Gerla, S. S. Lee, and M. Sanadidi. TCP Westwood: congestion control with faster recovery. Technical Report 2000.
....real time simulation system described in the article is going to be used for study of the implications of all these algorithms on the TCP IP traffic. Moreover, we are going to evaluate various proposals, that have come over the years, for the improvment of TCP IP performance over wireless links [4, 10, 12]. Appropriate performance measures are throughput, latency statistics and average data rates over wireless links. More complete results of the simulations will be presented at the conference. ....
S. Mascolo, C. Casetti, M. Gerla, S. S. Lee, and M. Sanadidi. TCP Westwood: congestion control with faster recovery. Technical Report 2000.
....efficiency using AMS and simple ARQ with Lth order MRC diversity in the mobile and Kth order of selection diversity between the users. The SNR per receiver antenna and information bit is # ###dB. provements of TCP have been proposed to alleviate this effect. A promising variant is TCP Westwood [14], which has provided large performance improvements in initial trials. This variant of TCP requires modifications only at the transmitter from where it monitors the bandwidth of the channel and adjusts the transmission rate accordingly. We propose the use of TCP Westwood as a means to avoid ....
S. Mascolo, C. Casetti, M. Gerla, S. Lee and M. Sanadini, "TCP Westwood: congestion control with faster recovery, " Mobicom01, Rome, July 2001.
....using AMS and simple ARQ with th order MRC diversity in the mobile and th order of selection diversity between the users. The SNR per receiver antenna and information bit is # t dB. provements of TCP have been proposed to alleviate this effect. A promising variant is TCP Westwood [14], which has provided large performance improvements in initial trials. This variant of TCP requires modifications only at the transmitter from where it monitors the bandwidth of the channel and adjusts the transmission rate accordingly. We propose the use of TCP Westwood as a means to avoid ....
S. Mascolo, C. Casetti, M. Gerla, S. Lee and M. Sanadini, "TCP Westwood: congestion control with faster recovery, " Mobicom01, Rome, July 2001.
....dynamically changing because mobile hosts may join, leave, or fail over time. Besides, n is not constrained; there may be a large number of networking nodes. The network provides neither physical nor logical infrastructure supports. The nodes may be equipped with wireless transport layer protocols [42, 43, 45] and the network may adopt some ad hoc routing protocols [44] to enable multihop communication. However, the reliability of multihop packet forwarding that based on these supports is not assumed. In our architecture, we make the following six assumptions. 1) Each node i has a unique nonzero ID v ....
S. Mascolo, C. Casetti, M. Gerla, S. S. Lee, and M. Sanadidi, "TCP Westwood: congestion control with faster recovery," UCLA CSD Technical Report 200017, 2000.
....[5] mechanism. The main drawback of these solutions is that they require TCP stack modifications at all endpoints. They therefore require standardization of modifications in TCP followed by widespread acceptance of these changes. TCP Westwood A new version of the TCP protocol TCP Westwood [16] was proposed recently. TCP Westwood enhances the performance of the TCP window congestion control by using an end to end measurements of the available bandwidth as feedback. The available bandwidth is estimated at the TCP source by measuring and low pass filtering the returning rate of ....
S. Mascolo, C. Casetti, M. Gerla, S. S. Lee, M. Sanadini, "TCP Westwood: congestion control with faster recovery".In UCLA CS Technical Report #200017, 2000
No context found.
S. Mascolo, C. Casetti, M. Gerla, S. S. Lee, M. Sanadidi. "TCP Westwood: congestion control with faster recovery", UCLA CSD TR#2000.
....in the wireless device. Thus, no changes need to be introduced at the TCP end points. TCP applications that cannot handle semantic breakage caused by the split will not have their packets converted to WP but will just use header compression. plemented on the sender side only is TCP Westwood [14]. It has been inspired by recent control theoretical insights into the nature of TCP and packet data flow control algorithms in general [15] USE OF SOFT INFORMATION IN IP BASED WIRELESS NETWORKS The proposed processing creates information, such as soft decoded symbols or MAP estimates, that is ....
S. Mascolo, C. Casetti, M. Gerla, S.S. Lee and M. Sanadini, "TCP Westwood: congestion control with faster recovery", in UCLA CS Technical Report 200017, Univ. California, Los Angeles, 2000.
No context found.
S. Mascolo, C. Casetti, M. Gerla, and S.S. Lee, M. Sanadidi, "TCP Westwood: Congestion Control with Faster Recovery," UCLA CS Technical Report #2000.
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