Wireless signal receiver

A device, comprising:

• at least one memory device having instructions programmed thereon;
• and
• at least one processor configured to access the at least one memory device and further configured to execute the instructions to:
• direct the device to receive wireless signal modulated according to spatial modulation (SM) orthogonal frequency division multiplexing (OFDM);
• apply a detection procedure to information indicative of the wireless signal, wherein:
• the detection procedure uses a first search space of bits based on a modulation coding scheme, the first search space of bits having a dimension that is less than a second dimension of a second search space of bits, the second search space of bits being associated with a soft-output optimal joint maximum likelihood detection procedure, and
• the first search space comprises a first list of antenna indices, and the first list of antenna indices is based on a one or more active transmit antenna indices selected from a set of transmit antenna indices.

At least one computer-readable storage device having instructions encoded thereon that, in response to execution, direct a device to perform or facilitate operations comprising:

• accessing information indicative of an index indicating a modulation coding scheme of the device;
• determining, based at least on the modulation coding scheme, a first search space associated with a first detection procedure, the first search space having a first cardinality, and wherein the first search space comprises a first list of antenna indices, and the first list of antenna indices is based on a one or more active transmit antenna indices selected from a set of transmit antenna indices;
• determining a second search space using the first search space, the second search space having a second cardinality less than the first cardinality;
• and
• applying the first detection procedure using the second search space to information indicative of a wireless signal modulated according to spatial modulation (SM) orthogonal frequency division multiplexing (OFDM).