Energy detection receiver for UWB

A method for selecting an encoding method for transmission of data via a wireless network by a first wireless device to a group of one or more other wireless devices, the wireless network comprising a wireless medium having a frequency bandwidth, the method comprising:

• (A) connecting from the first wireless device to the one or more other wireless devices, and receiving at the first wireless device from each of the one or more other wireless devices an indication of a respective receiver decoding mode;
• (B) determining at the first wireless device whether the group of one or more other wireless devices comprise a plurality of devices;
• and
• (C) setting the encoding mode of the first wireless device based upon the determination in the act (B), wherein the first wireless device is capable of encoding data using phase encoding and energy encoding, wherein the energy encoding comprises encoding the data in M frequency subbands of the frequency bandwidth by assigning a binary value to each one of the frequency subbands, wherein a value of the encoded data is based on which of the frequency subbands has energy present at a single point in time and the binary values assigned to the frequency subbands that have energy present at said single point in time, wherein a number of possible values encoded using the energy coding is greater than M, wherein the act of setting comprises:
• (C1) setting the encoding mode of the first wireless device to the decoding mode of the group of one or more other wireless device if it is determined in act (B) that the group of one or more other wireless devices consists of a single device;
• (C2) setting the encoding mode of the first wireless device to the decoding mode of the group of one or more other wireless devices if it is determined in the act (B) that the group of one or more other wireless devices comprises a plurality of other wireless devices and if it is determined that the receiver decoding modes of the plurality of other wireless devices are identical;
• and,
• (C3) setting the encoding mode of the first wireless device to employ multiple encoding types if it is determined in the act (B) that the group of one or more other wireless devices comprises a plurality of other wireless devices and if it is determined that the receiver decoding modes of the other wireless devices are not identical.

A computer-readable storage medium having thereon computer-executable instructions for performing a method of selecting an encoding method for transmission of data via a wireless network by a first wireless device to a group of one or more other wireless devices, the wireless network comprising a wireless medium having a frequency bandwidth, the computer-executable instructions comprising instructions for:

• connecting from the first wireless device to the one or more other wireless devices, and receiving at the first wireless device from each of the one or more other wireless devices an indication of a respective receiver decoding mode;
• determining at the first wireless device whether the group of one or more other wireless devices comprise a plurality of devices;
• and
• determining whether the respective receiver decoding modes of the group of one or more other wireless devices are identical, and if the respective receiver decoding modes are not identical then setting the encoding mode of the first wireless device to employ multiple encoding types including phase encoding and energy encoding, wherein the energy encoding comprises encoding the data in M frequency subbands of the frequency bandwidth by assigning a binary value to each one of the frequency subbands, wherein a value of the encoded data is based on which of the frequency subbands has energy present at a single point in time and the binary values assigned to the frequency subbands that have energy present at said single point in time, wherein a number of possible values encoded using the energy coding is greater than M, wherein employing multiple encoding types comprises sending different code types sequentially.