What is DD IEC/TS 61334-5-5 - Spread spectrum-fast frequency hopping (SS-FFH) profile about?
DD IEC/TS 61334-5-5 describes the requirements of the spread spectrum-fast frequency hopping (SS-FFH) approach for distribution line carrier communication systems.
DD IEC/TS 61334-5-5 incorporates the primitives provided by the physical and MAC layer entities as well as the modulation and transmission methods.
Who is DD IEC/TS 61334-5-5 - Spread spectrum-fast frequency hopping (SS-FFH) profile for?
DD IEC/TS 61334-5-5 on spread spectrum-fast frequency hopping (SS-FFH) profile is useful for:
- Information technology industry
- Electronics and telecommunication industry
- Agencies involved in data transmission
- Service providers
- Entities using the electrical low-voltage distribution network
- Network and transmission engineers/ technical teams
Why should you use DD IEC/TS 61334-5-5 - Spread spectrum-fast frequency hopping (SS-FFH) profile?
DD IEC/TS 61334-5-5 describes a new physical layer variant with respect to the already defined modulation techniques FSK and S-FSK within the IEC 61334 series (IEC 61334-5-1 and IEC 61334-5-2 1)).
The SS-FFH profile outlined in DD IEC/TS 61334-5-5 basically incorporates spread spectrum modulation techniques. It offers the main advantages of very high robustness and improved EMI characteristics without sharing classical spread spectrum drawbacks such as exaggerated bandwidth demand or impractical realization.
The profile specifies the physical layer including the transmission methods and the services provided by both the physical layer and medium access sublayer entities.
Spreading the information in the described way on numerous carriers has several advantages, such as:
- Symbol detection is possible with only one carrier present which makes SS-FFH very robust against interference
- EMI regulations can be met more easily through the fact that the signalling energy is not confined to a narrow spectral segment
SS-FFH provides the robustness unique to spread spectrum systems without sharing the drawbacks such as complicated synchronization or expensive system implementation.
DD IEC/TS 61334-5-5 details the transmission method to transport data frames provided by the MAC sublayer to and from peer MAC entities using the electrical low-voltage distribution network. DD IEC/TS 61334-5-5 also specifies the requirements for the logical interface between the physical layer and the MAC sublayer.
