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Exploiting Redundancy for Timeliness in TCP Boston

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dc.contributor.author Bestavros, Azer en_US
dc.contributor.author Kim, Gitae en_US
dc.date.accessioned 2011-10-20T04:37:43Z
dc.date.available 2011-10-20T04:37:43Z
dc.date.issued 1997-01-24 en_US
dc.identifier.uri http://hdl.handle.net/2144/1602
dc.description.abstract While ATM bandwidth-reservation techniques are able to offer the guarantees necessary for the delivery of real-time streams in many applications (e.g. live audio and video), they suffer from many disadvantages that make them inattractive (or impractical) for many others. These limitations coupled with the flexibility and popularity of TCP/IP as a best-effort transport protocol have prompted the network research community to propose and implement a number of techniques that adapt TCP/IP to the Available Bit Rate (ABR) and Unspecified Bit Rate (UBR) services in ATM network environments. This allows these environments to smoothly integrate (and make use of) currently available TCP-based applications and services without much (if any) modifications. However, recent studies have shown that TCP/IP, when implemented over ATM networks, is susceptible to serious performance limitations. In a recently completed study, we have unveiled a new transport protocol, TCP Boston, that turns ATM's 53-byte cell-oriented switching architecture into an advantage for TCP/IP. In this paper, we demonstrate the real-time features of TCP Boston that allow communication bandwidth to be traded off for timeliness. We start with an overview of the protocol. Next, we analytically characterize the dynamic redundancy control features of TCP Boston. Next, We present detailed simulation results that show the superiority of our protocol when compared to other adaptations of TCP/IP over ATMs. In particular, we show that TCP Boston improves TCP/IP's performance over ATMs for both network-centric metrics (e.g., effective throughput and percent of missed deadlines) and real-time application-centric metrics (e.g., response time and jitter). en_US
dc.language.iso en_US en_US
dc.publisher Boston University Computer Science Department en_US
dc.relation.ispartofseries BUCS Technical Reports;BUCS-TR-1997-001 en_US
dc.subject ATM networks en_US
dc.subject TCP/IP en_US
dc.subject Adaptive Information Dispersal Algorithm en_US
dc.subject Real-time communication en_US
dc.subject Congestion control en_US
dc.subject Performance evaluation en_US
dc.title Exploiting Redundancy for Timeliness in TCP Boston en_US
dc.type Technical Report en_US


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