Dynamic Resource Reservation on satellite Communication Links

AF05-102 Dynamic Resource Reservation Proposal Abstract The objective of this SBIR is to design, develop and implement dynamic resource reservation (DRR) hardware/software for operation over transponded satellites. The demand for high capacity network centric satellite communications requires more efficient ways to utilize the existing bandwidth and provide real-time bandwidth management. Given the bursty nature of IP traffic and the use of QoS mechanisms such as DSCP to manage traffic streams, the network, link, and physical layers of the OSI model must be designed such that the interfaces and algorithms operate cooperatively to effectively and efficiently support real-time DRR. There are a number of factors that must also be considered that will influence the final implementation. These include the use of `Open Standards' where possible, JTRS SCA compliance, the use of the AES Encryption, netted, as well as, hub-spoke operation, and Communications on the Move requirements. The current IP modem industry would like to use the existing DVB-RCS/S2 standards with extensions to meet the DoD requirements. This standard is of interest because of its built-in Multiple Frequency (MF)-TDMA scheme that allows multiple terminals to move between and share channels. Access is determined based on each terminal's traffic load, resulting in very efficient bandwidth usage. Both the DVB extensions and the IP Modem Function Capabilities Documents (FCD) are being developed today. Both should be available to influence the final algorithms/protocols selected during Phase I of this SBIR. However, it should be noted that there are a number of challenges with the current DVB standards. First, DVB lacks the ability to include priority information with requests for more bandwidth. Second, it was not designed to handle mobility, and third, it was designed for hub-spoke configurations and the DoD needs netted operations. LinQuest is considering three unique DRR implementations to be evaluated during Phase I; an IP modem like design, an IP router TDMA line card, and an external DRR device. This proposal reviews all three architectures and implementation details. The final architecture selection will be heavily influenced by our ability to leverage existing chips sets and hardware being developed today. The key objective on this project is to maintain acceptable risk, a short development cycle, while targeting a low cost product. LinQuest is an employee-owned small business with exceptionally strong qualifications in the Military & Commercial Satellite Communication Systems, Engineering and Technical Assistance (SETA) arena. LinQuest was formed in the fall of 2003 started out as LinCom in 1974. LinCom was acquired by Titan in April 2000 becoming the Titan-Communications & Software Solutions Division (CSSD). The Lockheed/Titan merger announcement in September 2003 caused numerous Organizational Conflict of Interest (OCI) problems with Titan-CSSD's customer base. As a result, Lockheed/Titan divested and sold a large portion of Titan-CSSD to LinQuest in January 2004. So although the name is new, LinQuest has been providing SETA support to government organizations for over thirty years. Thus, LinQuest brings a staff of experienced engineers, analysts, and computer professionals most of which hold advanced degrees. LinQuest is uniquely qualified to support the development of DRR hardware and software given our strong background with Satcom waveforms, DAMA, IP, and QoS traffic management.