Patent attributes
Methods, systems, and apparatuses, including computer programs encoded on computer-readable media, for receiving a first modulated signal on a first sub-channel, wherein a first transmitter randomly selects the first sub-channel from a plurality of sub-channels and for receiving, at the receiver, a second modulated signal on a second sub-channel, wherein the second sub-channel is orthogonal to the first sub-channel, wherein a second transmitter randomly selects the second sub-channel from the plurality of sub-channels. At least a portion of the first signal overlaps with a portion of the second signal. For each of the plurality of sub-channels, a plurality of symbols are stored in a buffer and a plurality of potential data frames are determined based upon the symbols in the buffer. A signal detection algorithm is applied to the potential data frames to detect the first modulated signal and the second modulated signal.