Open AccessDEMULTIPLEX THE SSB SIGNAL WITHOUT THE INTERFERENCES BETWEEN THE EVEN AND THE ODD SUBCHANNELS
Author(s) -
Ranjita Rout,
Jagan Bihari Padhy
Publication year - 2015
Publication title -
international journal of electrical and electronics engineering
Language(s) - English
Resource type - Journals
ISSN - 2231-5284
DOI - 10.47893/ijeee.2015.1173
Subject(s) - interference (communication) , multiplexing , sine , computer science , electronic engineering , signal (programming language) , frequency division multiplexing , algorithm , orthogonal frequency division multiplexing , telecommunications , mathematics , channel (broadcasting) , engineering , programming language , geometry
This letter studies the interference between the even and the odd subchannels in the interleaved multiplexing optical fast orthogonal frequency-division multiplexing system, which is caused by the non-orthogonal demultiplexing transform at the receiver. To eliminate this interference, frequency and timing off-sets are introduced deliberately at the receiver to form orthogonal bases, which coincide with the discrete cosine and sine transforms of type- IV. Thus, the symbols can be demultiplexed at the receiver without any interference between subchannels, and the proposed receiver design can be implemented efficiently. Finally, analysis and simulation are provided to verify its feasibility and the ability to eliminate such interference.