System and method using rate split scheme based on cooperation between receivers
Each of a first transmitter and a second transmitter uses a rate split scheme. Each of the first transmitter and the second transmitter may transmit at least four sub-messages, and different transmission powers may be allocated to the at least four sub-messages. Also, each of receivers may cooperate with each other, may share sub-messages that act as interferences, and may extract desired messages using the shared sub-messages.
1. A communication method of a transmitter, the method comprising:
generating a transmission message comprising:
a 1-1-(i−1) th sub-message;
a 2-1-(i−1) th sub-message;
a 2-1-(i) th sub-message; and
a 3-1-(i−1) th sub-message in a (i−1) th time slot;
allocating transmission powers A, B, C, and D [W], respectively, in the transmission message of the (i−1) th time slot, A, B, C, and D denoting real numbers and A>B>C>D, to:
the 1-1-(i−1) th sub-message;
the 2-1-(i−1) th sub-message;
the 2-1-(i) th sub-message; and
the 3-1-(i−1) th sub-message; and
generating a transmission message comprising the 2-1-(i) th sub-message in a (i) th time slot.
2. The method of claim 1 , further comprising allocating a transmission power B to the 2-1-(i) th sub-message in the transmission message in the (i) th time slot.
3. The method of claim 1 , further comprising determining the transmission powers A, B, C, and D based on information associated with an interference channel of a corresponding transmission/reception pair and information associated with an interference channel of an adjacent transmission/reception pair.
4. The method of claim 1 , further comprising:
cooperating with the adjacent transmission/reception pair; and
collecting information associated with the interference channels.
5. The method of claim 1 , wherein the allocating allocates the transmission powers A, B, C, and D, respectively, to enable a receiver of the adjacent transmission/reception pair to:
succeed in decoding of the 1-1-(i−1) th sub-message and the 2-1-(i−1) th sub-message from the transmission message in the (i−1) th time slot; and
fail in decoding of the 2-1-(1) th sub-message and the 3-1-(i−1) th sub-message from the transmission message in the (i−1) th time slot.
6. The method of claim 5 , wherein the allocating allocates the transmission powers A, B, C, and D, respectively, to enable a receiver corresponding to the transmitter to succeed in decoding of the 1-1-(i−1) th sub-message, the 2-1-(i−1) th sub-message, the 2-1-(1) th sub-message, and the 3-1-(i−1) th sub-message from the transmission message in the (i−1) th time slot.
7. The method of claim 2 , wherein the allocating allocates the transmission power B to the 2-1-(i) th sub-message to enable a receiver of the adjacent transmission/reception pair to succeed in decoding of the 2-1-(1) th sub-message from the transmission message in the (i) th time slot.
8. A non-transitory computer-readable recording medium storing a program implementing the method of claim 1 .