Frequency selective modulating apparatus and method using re-spreading code
A frequency selective modulation apparatus and method using re-spreading codes are disclosed. The frequency selective modulation apparatus includes: a serial-to-parallel converter receiving transmission data and performing serial-to-parallel conversion on the transmission data at a pre-set ratio; one or more sub-frequency selective spreaders selecting one spreading code by using data bits received from the serial-to-parallel converter; a majority value selection unit selecting a majority value from one or more spreading codes which have been selected by each of the one or more of the sub-frequency selective spreaders; and a first XOR logic circuit XORing an output of the majority value selection unit and a re-spreading code Wn to re-spread a frequency selective baseband to a frequency selective passband.
Electronics and Telecommunications Research Institute
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inventional inventional inventional
Chang Hee Jung Hwan Kyung Soo Seok Bong Jung Bum Tae Young Byoung Gun In Gi Sung Eun Hyung II Sung Weon Kyung Hwan Jin Kyung Tae Wook
Hyoung Hwang Kim Hyun Kim Kang Choi Lim Kim Park Kang Park Kim Kang