iDirect’s unique IP-based TDM/D-TDMA satellite transmission technology enables customers to intelligently share network capacity across multiple locations, allocating bandwidth in real time and on demand. Our dynamic capacity allocation allows customers to economically service sites with very low traffic requirements, as well as sites with higher traffic requirements. This results in significant bandwidth savings.
iDirect’s TDM technology is used for the outbound (downstream) from the hub to the remote. The proprietary implementation of the TDM protocol, along with a number of advanced technologies (including Turbo Product Codes and iDirect's unique IP encapsulation techniques), transmit data packets in a manner that allows for maximum utilization of assigned bandwidth. This starts from 128 kbps in IP data rates and goes up to 20 Mbps. iDirect’s TDM is extremely scalable and allows the customer to activate bandwidth in 1 bps increments – this means the customer pays only for the bandwidth that is required.
On the inbound (upstream) from the remotes to the hub, iDirect’s patented Deterministic TDMA (D-TDMA) technology is used. This allows multiple remote sites to share capacity in an extremely dynamic manner. The deterministic nature of the system continually allocates bandwidth multiple times per second based to the exact demand of each remote and the network operator-imposed QoS restrictions.
Combined with multi-frequency hopping, a remote can transmit data on its dedicated time slot for most of the traffic and, if required, can be allocated additional bandwidth on another inbound carrier. This provides a great deal of flexibility in designing a network and saves satellite bandwidth while providing the required performance to its remote sites.
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