Data links - JSF has the standard Link 16 capabilities, but in addition has MADL (Mission Adaptive Data Link) for JSF to JSF data exchange. MADL modes and performance are classified, but it's a great deal 'fatter' a pipe than L16. Uk is getting MADL, and UK engineers are working on it at Fort Worth.
See article below by Bill Sweetman.
F-22 and F-35 suffer from network gaps