Key Points Orbit close to Earth compared with higher regimes Supports lower latency than higher orbits Common in satellite communications and Earth observation Requires orbital movement and constellation coordination Completes orbit in short period compared with geostationary systems Lower altitude…
Key Points Supports field operations and mobility Often hardened for harsh conditions Emphasizes ruggedness, portability, and secure connectivity Used in Government & Defence communications, expeditionary operations, and field deployments Operates as a portable endpoint without relying on fixed infrastructure Definition…
Key Points Provider operates shared infrastructure for multiple tenants Resources are accessed over network-based service interfaces Supports elastic scale and remote administration Common for application hosting and data services Customers pay for usage rather than owning hardware Definition Public Cloud…
Key Points Provides relay capability from the air Extends coverage over terrain or distance Used in emergency and expeditionary operations Operates via placement of a relay node at altitude for line-of-sight forwarding Constraints include endurance, payload limits, weather, altitude, and…
Key Points Improves resilience and survivability of satellite communications systems Can include physical protection, RF hardening, and security measures Used in protected or mission-critical satcom deployments Involves tradeoffs between robustness, resource use, and operational flexibility Addresses vulnerabilities from environmental stress,…
Key Points Represents tolerance against interference effects Used in RF and link-budget planning Supports design for resilient connectivity Dependent on noise, power, and path conditions Helps engineers compare expected interference conditions against service requirements Applies across wireless design, satellite planning,…
Key Points Represents the user-side endpoint May be fixed, mobile, or remote Common in satellite and broadband access Provides interface between user side and access or transport network Definition User Terminal is the end-user communication device or endpoint that connects…
Key Points Checks whether data integrity has been affected Used before correction or retransmission Common in communication and storage systems Often implemented with parity, checksums, or CRCs Used in communication protocols, storage systems, file formats, and safety-critical data paths Definition…
Key Points Defines measurable service commitments Used between providers and customers Often includes availability and response targets Supports accountability and operational planning Definition Service Level Agreement is a formal agreement that defines service targets, responsibilities, and performance expectations between parties.…
Key Points Transfers service after failure or planned maintenance Supports continuity and resilience in distributed systems Used in networks, servers, cloud platforms, and control systems Can be automatic or manual Requires fault detection, backup readiness, and state synchronization Failure modes…
