Performance analysis of MB-OFDM UWB modulation through modified Saleh-Valenzuela channel model

UWB (Ultra Wide Band) technology is a wireless application technology that works at a frequency of 3.1-10.6 GHz. This technology is designed to transmit high-speed data in an indoor environment. MB-OFDM (Multiband Orthogonal Frequency Division Multiplexing) UWB is one of the UWB data transmission system. The symbol on the system is not sent continuously on a single frequency band, but they are interleaved on a different sub band of time and frequency to reduce multiple access interference. Modeling appropriate channel for this system through an indoor channel modeling which is modified Saleh-Valenzuela (S-V) channel model with NLOS conditions (Non Line of Sight). Based on the simulation result, for modifying Saleh-Valenzuela channel model with threshold BER as 10^-5 and bit rate 480 Mbps are found : QPSK need SNR (Signal to noise ratio) 15.5 dB and 16QAM need 18 dB.