Multicarrier modulation with enhanced frequency coding

1. A method, comprising:

assigning at least one of a set of symbols to a first carrier of a set of N carriers, and assigning an antipodal representative of said at least one of said set of symbols to a second carrier of said set of N carriers for multicarrier modulation configured to be used in a transmitter and

transmitting by the transmitter the set of symbols on the assigned carriers;

wherein a complex conjugate representative of said at least one of said set of symbols, which is associated with said first carrier, is assigned to a third carrier, and a complex conjugate representative of said antipodal representative, which is associated with said second carrier, is assigned to a fourth carrier, and

wherein said set of N carriers is associated with a set of N carrier frequencies, wherein each carrier frequency is represented by f i with index i ε {0,1, . . . , N−1}, and wherein said carrier frequencies f i are arranged via index i by an increasing order of said carrier frequencies, and wherein a carrier frequency of said first carrier is represented by f k with k ε {0,1, . . . , N−1}, and wherein a carrier frequency of said second carrier is represented by f l , wherein l ε {0, . . . , N−1} and l≠k holds; and

wherein a carrier frequency f N-l-k is associated with said third carrier and wherein a carrier frequency f N-1-l is associated with said fourth carrier and

wherein carrier frequencies of said first carrier and said second carrier are assigned to adjacent carrier frequencies.

2. The method according to claim 1 , wherein said multicarrier modulation represents a Multi Band Orthogonal Frequency Division Multiplexing Modulation.

3. The method according to the claim 1 , wherein an association of at least one of said N carriers with at least one of said set of symbols and said antipodal representative of said at least one symbol is the same for a first and a second symbol period of said multicarrier modulation.

4. The method according to the claim 1 , wherein an association of at least one of said N carriers with at least one of said set of symbols and said antipodal representative of said at least one symbol and said complex conjugate representative is the same for a first and a second symbol period of said multicarrier modulation.

5. The method according to claim 1 , wherein at least one of said carriers of said set of N carriers is assigned with a null symbol.

6. The method according to claim 1 , wherein at least two carriers of said set of N carriers are assigned with a null symbol, and wherein at least one pair of carriers of said at least two carriers of said set of N carriers has two carriers with adjacent carrier frequencies.

7. A method, comprising:

assigning at least one of a set of symbols to a first carrier of a set of N carriers, wherein said first carrier is weighted with a factor w, and assigning said at least one of said set of symbols to a second carrier of the set of N carriers for multicarrier modulation configured to be used in a transmitter, wherein said second carrier is weighted with the antipodal factor −w with respect to said factor w, wherein carrier frequencies of said first carrier and said second carrier are assigned to adjacent carrier frequencies and

transmitting by the transmitter the set of symbols on the assigned carriers;

wherein a complex conjugate representative of said at least one of said set of symbols, which is associated with said first carrier, is assigned to a third carrier, and a complex conjugate representative of said antipodal representative, which is associated with said second carrier, is assigned to a fourth carrier, and

wherein said set of N carriers is associated with a set of N carrier frequencies, wherein each carrier frequency is represented by f i with index i ε {0,1, . . . , N−1}, and wherein said carrier frequencies f i are arranged via index i by an increasing order of said carrier frequencies, and wherein a carrier frequency of said first carrier is represented by f k with k ε {0,1, . . . , N−1}, and wherein a carrier frequency of said second carrier is represented by f l wherein l ε {0, . . . , N−1} and l≠k holds; and

wherein a carrier frequency f N-l-k is associated with said third carrier and wherein a carrier frequency f N-1-l is associated with said fourth carrier.

8. A non-transitory computer-readable storage medium that, when executed by a computer, performs a method according to claim 1 .

9. A non-transitory computer-readable storage medium that, when executed by a computer, performs a method according to claim 7 .

10. An apparatus, comprising:

at least one processor;

at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to:

assign at least one of a set of symbols to a first carrier of a set of N carriers, and a component configured to assign an antipodal representative of said at least one of said set of symbols to a second carrier of said set of N carriers for multicarrier modulation, and

assign carrier frequencies of said first carrier and said second carrier to adjacent carrier frequencies; and

a transmitter for transmitting the set of symbols on the assigned carriers;

wherein a complex conjugate representative of said at least one of said set of symbols, which is associated with said first carrier, is assigned to a third carrier, and a complex conjugate representative of said antipodal representative, which is associated with said second carrier, is assigned to a fourth carrier, and

wherein said set of N carriers is associated with a set of N carrier frequencies, wherein each carrier frequency is represented by f i with index i ε {0,1, . . . , N−1}, and wherein said carrier frequencies f i are arranged via index i by an increasing order of said carrier frequencies, and wherein a carrier frequency of said first carrier is represented by f k with k ε {0,1, . . . , N−1}, and wherein a carrier frequency of said second carrier is represented by f l , wherein l ε {0, . . . , N−1} and l≠k holds; and

wherein a carrier frequency f N-l-k is associated with said third carrier and wherein a carrier frequency f N-1-l is associated with said fourth carrier.

11. An apparatus comprising:

at least one processor:

at least one memory including computer program code, the at least one memory and the computer program code configured, with the at least one processor, to cause the apparatus in receipt of a multicarrier signal of a multicarrier modulation to:

receive by a receiver a set of symbols on a set of N carriers,

detect symbols of said multicarrier signal, wherein said multicarrier modulation assigns said symbols to carriers of said set of N carriers, wherein at least one of said symbols is assigned to a first carrier of said set of N carriers, and wherein an antipodal representative of said at least one of said symbols is assigned to a second carrier of said set of N carriers, and

detect said symbols, wherein carrier frequencies of said first carrier and said second carrier are assigned to adjacent carrier frequencies;

wherein a complex conjugate representative of said at least one of said symbols, which is associated with said first carrier, is assigned to a third carrier, and a complex conjugate representative of said antipodal representative, which is associated with said second carrier, is assigned to a fourth carrier, and

wherein said set of N carriers is associated with a set of N carrier frequencies, wherein each carrier frequency is represented by f i with index i ε {0,1, . . . , N−1}, and wherein said carrier frequencies f i are arranged via index i by an increasing order of said carrier frequencies, and wherein a carrier frequency of said first carrier is represented by f k with k ε {0,1, . . . , N−1}, and wherein a carrier frequency of said second carrier is represented by f l , wherein l ε {0, . . . , N−1} and l≠k holds; and

wherein a carrier frequency f N-1-k is associated with said third carrier and wherein a carrier frequency f N-1-l is associated with said fourth carrier.

12. The apparatus according to claim 11 , wherein said at least one memory and said computer program code are further configured cause said apparatus to detect said symbols, wherein said apparatus applies at least one of time-domain and frequency-domain detection methods.