we proposed the newly designed raptor like rate compatible QC-LDPC codes for the cloud transmission system. Since the proposed LDPC codes have an ideal frame-work at low coding rate range ,the designed codes with a length of 64800 are within about 0.55 db to 0.65 db compared to the Shannon limit at BER = 10^-6. Furthermore,the designed LDPC codes have raptor code's property, so that they can be decoded with a part of original codeword at the receiver to reduce power consumption and latency under high signal to noise ratio regions.