John Fitzpatrick

Learn More
20 Network centric handover solutions for all IP wireless networks usually require modifications to network 21 infrastructure which can stifle any potential rollout. This has led researchers to begin looking at alterna-22 tive approaches. Endpoint centric handover solutions do not require network infrastructure modification, 23 thereby alleviating a large(More)
— Current trends show a growing number of femtocell deployments, this in turn will lead to increased volumes of voice traffic being transmitted through fixed broadband access networks such as Digital Subscriber Line. In this paper the issue of maintaining call quality through the resource constraint expedited forwarding queue of DSLAMs is investigated. A(More)
– Existing terminal oriented handover mechanisms capable of meeting the strict delay bounds of real time applications such as VoIP do not consider the QoS of candidate handover networks. In this paper ECHO – a QoS based handover solution for VoIP– is proposed. ECHO is endpoint centric and does not require any network support; it leverages the SCTP transport(More)
Minimum wages, workplace security, prevailing wages, equal employment opportunity, wages paid, time off, drug and alcohol testing, child labor, human trafficking, and immigrant protections were among the most active areas in which legislation was enacted or revised during the year S tates enacted a volume of labor legislation in 2006 which was significantly(More)
—Voice over IP (VoIP) now has tremendous influence on the telecommunication market with its flexibility and price advantage. Users of VoIP expect call quality to be as good as, if not better than the traditional Public Switched Telephone Network (PSTN). However in VoIP, factors that are related to the IP transport network such as packet loss, delay,(More)
NOTE The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the Secretariat of the United Nations concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. * * *(More)