Browsing Computer Science by Author "Mattar, Karim"

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Browsing Computer Science by Author "Mattar, Karim"

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  • Mattar, Karim; Matta, Ibrahim; Day, John; Ishakian, Vatche; Gursun, Gonca (Boston University Computer Science Department, 2008-07-12)
    Transport protocols are an integral part of the inter-process communication (IPC) service used by application processes to communicate over the network infrastructure. With almost 30 years of research on transport, one ...
  • Mattar, Karim; Epstein, Samuel; Matta, Ibrahim (Boston University Computer Science Department, 2009-01-30)
    In this paper we introduce a theory of policy routing dynamics based on fundamental axioms of routing update mechanisms. We develop a dynamic policy routing model (DPR) that extends the static formalism of the stable paths ...
  • Day, John; Matta, Ibrahim; Mattar, Karim (Boston University Computer Science Department, 2008-08-15)
    This position paper outlines a new network architecture, i.e., a style of construction that identifies the objects and how they relate. We do not specify particular protocol implementations or specific interfaces and ...
  • Epstein, Samuel; Matta, Ibrahim; Mattar, Karim (Boston University Computer Science Department, 2008-08-15)
    We present an online distributed algorithm, the Causation Logging Algorithm (CLA), in which Autonomous Systems (ASes) in the Internet individually report route oscillations/flaps they experience to a central Internet Routing ...
  • Mattar, Karim; Epstein, Samuel; Matta, Ibrahim (CS Department, Boston University, 2010-04-27)
    The dynamic policy routing model (DPR) was recently introduced to explicitly model the dynamics of policy routing. DPR extends the formalism of the stable paths problem with discrete synchronous time to capture the propagation ...
  • Mattar, Karim; Sridharan, Ashwin; Zang, Hui; Matta, Ibrahim; Bestavros, Azer (Boston University Computer Science Department, 2006-06-06)
    In this work, we conducted extensive active measurements on a large nationwide CDMA2000 1xRTT network in order to characterize the impact of both the Radio Link Protocol and more importantly, the wireless scheduler, on ...
  • Gursun, Gonca; Matta, Ibrahim; Mattar, Karim (Boston University Computer Science Department, 2009-04-17)
    We revisit the problem of connection management for reliable transport. At one extreme, a pure soft-state (SS) approach (as in Delta-t [9]) safely removes the state of a connection at the sender and receiver once the state ...
  • Epstein, Samuel; Mattar, Karim; Matta, Ibrahim (Boston University Computer Science Department, 2009-04-21)
    We introduce the Dynamic Policy Routing (DPR) model that captures the propagation of route updates under arbitrary changes in topology or path preferences. DPR introduces the notion of causation chains where the route flap ...
  • Mattar, Karim; Sridharan, Ashwin; Zang, Hui; Matta, Ibrahim; Bestavros, Azer (Boston University Computer Science Department, 2006-10-25)
    Modern cellular channels in 3G networks incorporate sophisticated power control and dynamic rate adaptation which can have significant impact on adaptive transport layer protocols, such as TCP. Though there exists studies ...

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