LEADER 00000nam  2200385   4500 
001    AAI1481150 
005    20101215102243.5 
008    101215s2010    ||||||||||||||||| ||eng d 
020    9781124222349 
035    (UMI)AAI1481150 
040    UMI|cUMI 
100 1  Merritt, Sears 
245 10 Understanding asymmetric links, buffers and bi-directional
       TCP performance 
300    83 p 
500    Source: Masters Abstracts International, Volume: 49-01, 
500    Adviser: Timothy Brown 
502    Thesis (M.S.)--University of Colorado at Boulder, 2010 
520    Asymmetric uplink and downlink rates are common in many 
       broadband access networks, particularly DSL, DOCSIS, and 
       cellular. With the advent of peer-to-peer protocols and 
       pervasive devices supporting multimedia capabilities, bi-
       directional TCP traffic has also become commonplace [1]. 
       Under conditions where TCP connections are sending data in
       both directions simultaneously, performance, as we will 
       show, can be severely degraded 
520    This thesis seeks to determine how buffers, combined with 
       elementary queueing strategies like FIFO, influence bi-
       directional TCP performance across asymmetric network 
       links. It also seeks to determine if there is a way to 
       size buffers such that the throughput for a small number 
       of bi-directional connections is optimized 
520    To answer this question, fundamental system components and
       algorithms will be reviewed. Following this, research 
       pertaining to observations, optimization techniques and 
       design spaces will be analyzed. Next, a set of real world 
       experiments will be analyzed. Finally, a buffer sizing 
       model will be proposed that optimizes throughput for the 
       bi-directional, long lived, TCP traffic under a FIFO 
       queueing strategy 
520    Practically speaking, this thesis seeks to determine if 
       current consumer grade customer premise equipment is 
       designed to provide adequate performance for bi-
       directional Internet traffic across typical asymmetric 
       access technologies like DSL and DOCSIS 
590    School code: 0051 
650  4 Technical Communication 
650  4 Computer Science 
690    0643 
690    0984 
710 2  University of Colorado at Boulder.|bTelecommunications 
773 0  |tMasters Abstracts International|g49-01 
856 40 |uhttp://pqdd.sinica.edu.tw/twdaoapp/servlet/