通信系统 ITU－T G.729 Annex B 语音压缩标准-ITU-T Recommendation G.729 – Annex B A silence compression scheme for G.729 optimizedfor terminals conforming to recomendationV7.0

i am uploade matlab code for perfomance analysis of OFDM systyem using different modulation scheme.it simulatoion result is so interesting to propose the modulation scheme when OFDM system is use in application .

OFDM is a frequency-division multiplexing (FDM) scheme used as a digital multi-carrier modulation method. A large number of closely spaced orthogonal sub-carrier signals are used to carry data on several parallel data streams or channels.