3.1–5GHz IEEE 802.15.4a impulse radio UWB receiver specifications

IEEE 802.15.4a standard targets low data-rate wireless networks with extensive battery life and very low complexity. It has introduced impulse radio ultra-wideband (IR-UWB) as an emerging physical layer for energy-efficient communications. Low-power implementation of the digital baseband processing is critical for the design of an IR-UWB receiver. Thus high speed analog to digital converters (ADC) is needed. This paper presents link radio budget analysis of the receiver. Then ADC parameters needed for the design has been computed. We conclude that 3 bits Flash ADC presents the basic choice that provide sufficient resolution and high sampling rate required for the presented UWB receiver.