Communications Quality of Service for Ad-hoc Mobile Optical Free-Space Networks
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Mobile Optical Free Space networks are an emerging technology that will offer low-delay and high speed connectivity using air-borne and ground wireless laser terminals. The time-variable link capacity and dynamic topology make Quality of Service provisioning a difficult problem. We present an architecture for end-to-end statistical delay guarantees. We describe a delay model that uses the concept of virtual traffic to accommodate link capacity variations and transient outages. A mechanism for deploying dependable TCP services is implemented in this QoS-enabled network. The primary-backup TCP replication mechanism is supported by the routing infrastructure and allows transparent server replication. We illustrate performance improvements with simulation results. 2006 IEEE.