A system comprising: a distributor; an input interface; and output interfaces to corresponding communication channels (CH1, CH2, CHm) that form a bonded channel group, where: the distributor is in communication with the input interface and the output interfaces; the distributor is configured to receive source data from the input interface and distribute the source data across the communication channels (CH1, CH2, CHm); the communication channels (CH1, CH2, CHm) comprise orbital angular momentum "OAM" channels (CH1, CH2, CHm); and characterized by a modulator circuit in communication with the distributor and configured to multiplex the source data to the OAM channels (CH1, CH2, CHm) using orthogonal frequency-division multiplexing "OFDM" characterized in that the source data represents a bit stream; and the distributor is adapted to: divide the bit stream into groups of n bits, with n being a number of subcarriers supported by the modulator circuit, wherein each input bit group is mapped into m output bit groups (2112, 2114, 2116, 2118) via a interleaving map, wherein m represents the number of supported OAM states; wherein the n bits of each input bit group are repeated m times, for each repeated bit group the order of n bits being reshuffled; wherein each n bits in an input group are divided into g=n/m bit subgroups, wherein n is an integer multiple of m, the g bit subgroups are shifted to the right by one subgroup for each output bit group. a distributor; an input interface; and output interfaces to corresponding communication channels (CH1, CH2, CHm) that form a bonded channel group, where: the distributor is in communication with the input interface and the output interfaces; the distributor is configured to receive source data from the input interface and distribute the source data across the communication channels (CH1, CH2, CHm); the communication channels (CH1, CH2, CHm) comprise orbital angular momentum "OAM" channels (CH1, CH2, CHm); and characterized by the distributor is in communication with the input interface and the output interfaces; the distributor is configured to receive source data from the input interface and distribute the source data across the communication channels (CH1, CH2, CHm); the communication channels (CH1, CH2, CHm) comprise orbital angular momentum "OAM" channels (CH1, CH2, CHm); and characterized by a modulator circuit in communication with the distributor and configured to multiplex the source data to the OAM channels (CH1, CH2, CHm) using orthogonal frequency-division multiplexing "OFDM" characterized in that the source data represents a bit stream; and the distributor is adapted to: divide the bit stream into groups of n bits, with n being a number of subcarriers supported by the modulator circuit, wherein each input bit group is mapped into m output bit groups (2112, 2114, 2116, 2118) via a interleaving map, wherein m represents the number of supported OAM states; wherein the n bits of each input bit group are repeated m times, for each repeated bit group the order of n bits being reshuffled; wherein each n bits in an input group are divided into g=n/m bit subgroups, wherein n is an integer multiple of m, the g bit subgroups are shifted to the right by one subgroup for each output bit group. characterized in that the source data represents a bit stream; and the distributor is adapted to: divide the bit stream into groups of n bits, with n being a number of subcarriers supported by the modulator circuit, wherein each input bit group is mapped into m output bit groups (2112, 2114, 2116, 2118) via a interleaving map, wherein m represents the number of supported OAM states; wherein the n bits of each input bit group are repeated m times, for each repeated bit group the order of n bits being reshuffled; wherein each n bits in an input group are divided into g=n/m bit subgroups, wherein n is an integer multiple of m, the g bit subgroups are shifted to the right by one subgroup for each output bit group. divide the bit stream into groups of n bits, with n being a number of subcarriers supported by the modulator circuit, wherein each input bit group is mapped into m output bit groups (2112, 2114, 2116, 2118) via a interleaving map, wherein m represents the number of supported OAM states; wherein the n bits of each input bit group are repeated m times, for each repeated bit group the order of n bits being reshuffled; wherein each n bits in an input group are divided into g=n/m bit subgroups, wherein n is an integer multiple of m, the g bit subgroups are shifted to the right by one subgroup for each output bit group.