Frequency-hopped IFDMA communication system

Details Frequency-hopped IFDMA communication system Frequency-hopped IFDMA communication system

2011-08-16

2011-08-16

Jain, Raj (Department: 2472)

Multiplex communications

Special services

Conferencing

Reexamination Certificate

active

08000268

ABSTRACT:
Frequency hopping in an IFDMA system takes place by utilizing a time-varying IFDMA modulation code. In particular, a modulator receives a symbol stream and a user specific IFDMA modulation code (bi(t)). The output of the modulator comprises a signal (xi(t)) existing at certain frequencies, or subcarriers. The actual subcarriers that signal xi(t) utilizes is dependent upon the repetition of the symbol blocks and the particular IFDMA modulation code utilized.

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