A method of receiving broadcast signals, the method comprising: receiving at least two broadcast signals and demodulating the received broadcast signals by an Orthogonal Frequency Division Multiplexing, OFDM, method; frequency de-interleaving (611100, 611200) each of the demodulated broadcast signals by a pair of cells; parsing (611120, 611220) at least two signal frames in each of the frequency deinterleaved broadcast signals to output Physical Layer Pipes, PLPs and signaling information for signaling data of the PLPs; Bit Interleaved Coded Modulation, BICM, decoding (612100, 612200) the data of the PLPs with a Multi-Input Single-Output, or a Multi-Input Multi-Output, MIMO scheme; and BICM decoding the signaling information with a MISO scheme, in response to the BICM decoding for data of the PLPs corresponding to the MISO scheme, the BICM decoding including: MISO decoding the data in the PLPs; time deinterleaving the MISO decoded data; demapping the time deinterleaved data; Forward Error Correction, FEC, decoding the demapped data, wherein each of the signal frames includes a preamble having a P1 symbol and an AP1 symbol, the P1 symbol identifying a format of the preamble, the AP1 symbol including additional transmission parameters, wherein the P1 symbol includes a P1-main part and two P1-guard intervals, each of the two P1-guard intervals is located at either side of the Px1-main part and generated by applying (fsh) frequency-shifting to front and back portions of the P1-main part respectively, wherein the AP1 symbol includes an AP1-main part and two AP1-guard intervals, each of the two AP1-guard intervals is located at either side of the AP1-main part and generated by applying (-fsh) frequency-shifting to front and back portions of the AP1-main part respectively. receiving at least two broadcast signals and demodulating the received broadcast signals by an Orthogonal Frequency Division Multiplexing, OFDM, method; frequency de-interleaving (611100, 611200) each of the demodulated broadcast signals by a pair of cells; parsing (611120, 611220) at least two signal frames in each of the frequency deinterleaved broadcast signals to output Physical Layer Pipes, PLPs and signaling information for signaling data of the PLPs; Bit Interleaved Coded Modulation, BICM, decoding (612100, 612200) the data of the PLPs with a Multi-Input Single-Output, or a Multi-Input Multi-Output, MIMO scheme; and BICM decoding the signaling information with a MISO scheme, in response to the BICM decoding for data of the PLPs corresponding to the MISO scheme, the BICM decoding including: MISO decoding the data in the PLPs; time deinterleaving the MISO decoded data; demapping the time deinterleaved data; Forward Error Correction, FEC, decoding the demapped data, wherein each of the signal frames includes a preamble having a P1 symbol and an AP1 symbol, the P1 symbol identifying a format of the preamble, the AP1 symbol including additional transmission parameters, wherein the P1 symbol includes a P1-main part and two P1-guard intervals, each of the two P1-guard intervals is located at either side of the Px1-main part and generated by applying (fsh) frequency-shifting to front and back portions of the P1-main part respectively, wherein the AP1 symbol includes an AP1-main part and two AP1-guard intervals, each of the two AP1-guard intervals is located at either side of the AP1-main part and generated by applying (-fsh) frequency-shifting to front and back portions of the AP1-main part respectively. MISO decoding the data in the PLPs; time deinterleaving the MISO decoded data; demapping the time deinterleaved data; Forward Error Correction, FEC, decoding the demapped data, wherein each of the signal frames includes a preamble having a P1 symbol and an AP1 symbol, the P1 symbol identifying a format of the preamble, the AP1 symbol including additional transmission parameters, wherein the P1 symbol includes a P1-main part and two P1-guard intervals, each of the two P1-guard intervals is located at either side of the Px1-main part and generated by applying (fsh) frequency-shifting to front and back portions of the P1-main part respectively, wherein the AP1 symbol includes an AP1-main part and two AP1-guard intervals, each of the two AP1-guard intervals is located at either side of the AP1-main part and generated by applying (-fsh) frequency-shifting to front and back portions of the AP1-main part respectively.