Economic issues in distributed computing

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Title: Economic issues in distributed computing
Author: Huang, Yun, 1973-
Abstract: On the Internet , one of the essential characteristics of electronic commerce is the integration of large -scale computer networks and business practices . Commercial servers are connected through open and complex communication technologies , and online consumers access the services with virtually unpredictable behavior . Both of them as well as the e -Commerce infrastructure are vulnerable to cyber attacks . Among the various network security problems , the Distributed Denial -of -Service (DDoS ) attack is a unique example to illustrate the risk of commercial network applications . Using a massive junk traffic , literally anyone on the Internet can launch a DDoS attack to flood and shutdown an eCommerce website . Cooperative technological solutions for Distributed Denial -of -Service (DDoS ) attacks are already available , yet organizations in the best position to implement them lack incentive to do so , and the victims of DDoS attacks cannot find effective methods to motivate the organizations . Chapter 1 discusses two components of the technological solutions to DDoS attacks : cooperative filtering and cooperative traffic smoothing by caching , and then analyzes the broken incentive chain in each of these technological solutions . As a remedy , I propose usage -based pricing and Capacity Provision Networks , which enable victims to disseminate enough incentive along attack paths to stimulate cooperation against DDoS attacks . Chapter 2 addresses possible Distributed Denial -of -Service (DDoS ) attacks toward the wireless Internet including the Wireless Extended Internet , the Wireless Portal Network , and the Wireless Ad Hoc network . I propose a conceptual model for defending against DDoS attacks on the wireless Internet , which incorporates both cooperative technological solutions and economic incentive mechanisms built on usage -based fees . Cost -effectiveness is also addressed through an illustrative implementation scheme using Policy Based Networking (PBN ) . By investigating both technological and economic difficulties in defense of DDoS attacks which have plagued the wired Internet , our aim here is to foster further development of wireless Internet infrastructure as a more secure and efficient platform for mobile commerce . To avoid centralized resources and performance bottlenecks , online peer -to -peer communities and online social network have become increasingly popular . In particular , the recent boost of online peer -to -peer communities has led to exponential growth in sharing of user -contributed content which has brought profound changes to business and economic practices . Understanding the dynamics and sustainability of such peer -to -peer communities has important implications for business managers . In Chapter 3 , I explore the structure of online sharing communities from a dynamic process perspective . I build an evolutionary game model to capture the dynamics of online peer -to -peer communities . Using online music sharing data collected from one of the IRC Channels for over five years , I empirically investigate the model which underlies the dynamics of the music sharing community . Our empirical results show strong support for the evolutionary process of the community . I find that the two major parties in the community , namely sharers and downloaders , are influencing each other in their dynamics of evolvement in the community . These dynamics reveal the mechanism through which peer -to -peer communities sustain and thrive in a constant changing environment .
URI: http : / /hdl .handle .net /2152 /3254
Date: 2008-08-28


Economic issues in distributed computing. Doctoral dissertation, The University of Texas at Austin. Available electronically from http : / /hdl .handle .net /2152 /3254 .

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