Title :
A 13.3 mW 500 Mb/s IR-UWB Transceiver With Link Margin Enhancement Technique for Meter-Range Communications
Author :
Shuli Geng ; Dang Liu ; Yanfeng Li ; Huiying Zhuo ; Woogeun Rhee ; Zhihua Wang
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing, China
Abstract :
This paper describes a link margin enhancement method for high data rate impulse-radio ultra-wideband (IR-UWB) transceiver systems. To overcome a trade-off between link margin and spectrum compliance in the pulse based UWB system, a spectrum-efficient frequency hopping (FH) technique is proposed to increase average transmission power without violating the spectrum mask. An energy detection receiver is used to convert a frequency hopping signal to a baseband signal with the original bandwidth, thus improving the signal-to-noise ratio. A 500 Mb/s 7.25-9.5 GHz UWB transceiver is implemented in 65 nm CMOS. Having eight sub-bands with 50% overlap, the transceiver exhibits a meter-range communication capability with a 9 dB link margin enhancement. The transceiver consumes 13.3 mW from a 1 V supply, achieving an energy efficiency of 26.6 pJ/bit.
Keywords :
CMOS integrated circuits; frequency hop communication; radio links; radio spectrum management; radio transceivers; signal detection; spread spectrum communication; ultra wideband communication; CMOS technology; UWB transceiver; bandwidth 7.25 GHz to 9.5 GHz; baseband signal; bit rate 500 Mbit/s; energy detection receiver; frequency hopping signal conversion; impulse radio ultra wideband transceiver systems; link margin enhancement technique; meter range communication; power 13.3 mW; pulse based UWB system; signal-to-noise ratio; size 65 nm; spectrum compliance; spectrum efficient frequency hopping technique; voltage 1 V; Bandwidth; Gain; Noise; OFDM; Receivers; Transceivers; Wireless communication; CMOS; frequency hopping; impulse radio (IR); transceiver; ultra-wideband (UWB); wireless;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2015.2393815
