Automatic gain controlling in IR-UWB communications designed for wireless sensors
Impulse Radio Ultra-Wideband (IR-UWB) communication system according to the standard IEEE.802.15.4a supporting non-coherent reception is discussed with the focus on the automatic gain controller (AGC). The performance of the transceiver is evaluated under noisy and common multipath channel environments. Simulation results confirm that a simple non-coherent, low power IR-UWB receiver can achieve the sensitivity of -70 dBm for the input signal with 250 MHz analogue using a 6 bit analogue to digital converter with a sampling frequency of 62.4 MHz. It presents the maximum achievable performance from the system under consideration where integrating circuit and slower analogue to digital converter are incorporated. The sensitivity of the receiver can be further improved by using a higher resolution ADC where -100 dBm received signal is still detected with 12 bit ADC.
S.Olonbayar G.Fischer D.Kreiser R.Kraemer
IHP GmBH , Im Technologiepark 25, 15230 Frankfurt Oder, Germany
国际会议
南京
英文
1-4
2010-09-20（万方平台首次上网日期，不代表论文的发表时间）