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Localized Quality of Service (QoS) routing schemes make routing decisions based on locally collected network state. But most QoS schemes proposed use global network state that requires periodic exchanges of network state among the routers. This results in communication overheads and processing overhead. The Localized (QoS) routing schemes avoid these problems by eliminating periodic exchange of QoS state information. The authors develop Dynamic Path Substitution Localized QoS Routing (DPSLR) and demonstrate through simulation that it outperforms the existing Credit Based Localized QoS Routing (CBR) which is the most efficient localized routing scheme to date.
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