CAPACITY ESTIMATION FOR WIRELESS SPREAD-SPECTRUM ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (SS-OFDM)

OFDM is a modulation and multiple access technique that has been a centre of
attention in these recent years. Since its development for military application in the
1960s, technical implementations of OFDM have appeared in digital audio
broadcasting, asymmetric digital subscriber lines (ADSL), high speed definition
television terrestrial broadcasting, and other systems. Because of its capabilities,
OFDM becomes a potential candidate as a multiple access technique for beyond 3G
mobile technology. This project presents a studyon OFDM performance for wireless
mobile environment. Spread-spectrum is employed in combination withOFDM. This
project paper presents a simulation of spread-spectrum OFDM using MATLAB and
capacity estimation of the simulated environment in wireless channel. The results of
the simulation are then compared with the theoretical capacity values of available 3G
systems.