Abstract:

To utilize the properties of ultrawide bandwidth, the structure of ultrawide bandwidth digital radio on fiber system was modified, and the system model was illustrated. Simulations and theoretical analysis show that different time hopping sequences (THS) will cause different system performance (signal to noise ratio), and different active number of users will bring about different average interference of time slot with the same THS. And also show that the modification will decrease the system complexity, and meanwhile, will increase the efficiency of fiber, and improve the system performance as well.

Key words: radioonfiber, ultrawide bandwidth, pulse position modulation