Patent ID: 8605770
Filing Date: 2013-12-10
Classification: H04B

Abstract:
1. A body area network, comprising: an impulse-radio ultra-wideband (“IR-UWB”) transmitter configured to apply burst position modulation exclusively, and to apply a single guard interval period per symbol transmitted; and an IR-UWB receiver configured to receive transmissions of the ultra-wideband impulse-radio transmitter; wherein a ratio of the guard interval period to a symbol transmission period is reduced as a data rate used to transmit the symbol decreases per symbol transmission period, wherein the IR-UWB transmitter is configured to generate a plurality of pulses within a time-slot selected based on a value of a symbol to be transmitted and a time-hopping sequence value, and to determine a polarity of each of the pulses based on a direct-sequence spreading sequence.