A Fully Integrated Wideband FM Transceiver for Low Data Rate Autonomous Systems

Saputra, Nitz; Long, John R.

doi:10.1109/jssc.2015.2399451

Cited by 30 publications

(26 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For those mini-Watt FPGA/DSP solutions [ 25 , 29 ] without any ultra-low-power design technique, the battery life is less than half day. Considering a wireless transceiver with energy consumption of 6 nJ/bit [ 31 ], the energy consumption for transmitting a 256-sample ECG segment after compression by our proposed compression engine will be ~17.5 µJ only. Therefore, 24-hour healthcare data collection from a 12-lead 360-Hz 12-bit ECG recording system generates about 522 MBytes raw data for real-time transmission to the remote base station or cloud sides.…”

Section: Post-layout Simulation Results and Discussionmentioning

confidence: 99%

An Ultra-Low Power Turning Angle Based Biomedical Signal Compression Engine with Adaptive Threshold Tuning

Zhou

Wang

2017

Sensors

View full text Add to dashboard Cite

Intelligent sensing is drastically changing our everyday life including healthcare by biomedical signal monitoring, collection, and analytics. However, long-term healthcare monitoring generates tremendous data volume and demands significant wireless transmission power, which imposes a big challenge for wearable healthcare sensors usually powered by batteries. Efficient compression engine design to reduce wireless transmission data rate with ultra-low power consumption is essential for wearable miniaturized healthcare sensor systems. This paper presents an ultra-low power biomedical signal compression engine for healthcare data sensing and analytics in the era of big data and sensor intelligence. It extracts the feature points of the biomedical signal by window-based turning angle detection. The proposed approach has low complexity and thus low power consumption while achieving a large compression ratio (CR) and good quality of reconstructed signal. Near-threshold design technique is adopted to further reduce the power consumption on the circuit level. Besides, the angle threshold for compression can be adaptively tuned according to the error between the original signal and reconstructed signal to address the variation of signal characteristics from person to person or from channel to channel to meet the required signal quality with optimal CR. For demonstration, the proposed biomedical compression engine has been used and evaluated for ECG compression. It achieves an average (CR) of 71.08% and percentage root-mean-square difference (PRD) of 5.87% while consuming only 39 nW. Compared to several state-of-the-art ECG compression engines, the proposed design has significantly lower power consumption while achieving similar CRD and PRD, making it suitable for long-term wearable miniaturized sensor systems to sense and collect healthcare data for remote data analytics.

show abstract

Section: Post-layout Simulation Results and Discussionmentioning

confidence: 99%

An Ultra-Low Power Turning Angle Based Biomedical Signal Compression Engine with Adaptive Threshold Tuning

Zhou

Wang

2017

Sensors

View full text Add to dashboard Cite

show abstract

“…The receiver from [ 9 ] consumes 2.2 mW while achieving –84 dBm sensitivity. A later implementation presented in [ 10 ] introduced several improvements at the circuit level (most notably current reuse among several blocks), which resulted in power consumption of only 560 µW and a slight reduction of sensitivity. Although the regenerative receiver achieved significant power savings, there are some downsides to this architecture.…”

Section: Review Of Fm-uwb Transceiversmentioning

confidence: 99%

“…It is then possible to use a ring oscillator that works at a frequency that is N times lower than the carrier center frequency. The approach was demonstrated in [ 25 ] and used for the FM-UWB transmitter in [ 10 ] to reduce the power consumption down to 0.63 mW.…”

Section: Review Of Fm-uwb Transceiversmentioning

confidence: 99%

“…A good compromise is the class AB that attains decent efficiency and does not need a rail-to-rail input signal. In fact, all of the transmitters reported in [ 10 , 22 , 24 ], which achieve the lowest power consumption so far, use a complementary class AB power amplifier. Finally, by applying the current reuse technique, as demonstrated in [ 10 ], where the PA and the driver share the same current, efficiency can be further improved.…”

Section: Review Of Fm-uwb Transceiversmentioning

confidence: 99%

“…Since the most power-hungry blocks are the VCO and the power amplifier, increasing the number of baseband sub-carrier generators would not cause a significant overhead. As an example in [ 10 ], the VCO and the PA consume 92% of the overall power, while the SC generator consumes around 2%. Using four SC generators would thus result in an overhead of less than 10% in terms of power consumption, assuming minor modifications in other baseband blocks.…”

Section: Multi-channel Transmission Using Fm-uwbmentioning

confidence: 99%

See 2 more Smart Citations

FM-UWB: Towards a Robust, Low-Power Radio for Body Area Networks

Kopta

Farserotu

Enz

2017

Sensors

View full text Add to dashboard Cite

The Frequency Modulated Ultra-Wideband (FM-UWB) is known as a low-power, low-complexity modulation scheme targeting low to moderate data rates in applications such as wireless body area networks. In this paper, a thorough review of all FM-UWB receivers and transmitters reported in literature is presented. The emphasis is on trends in power reduction that exhibit an improvement by a factor 20 over the past eight years, showing the high potential of FM-UWB. The main architectural and circuit techniques that have led to this improvement are highlighted. Seldom explored potential of using higher data rates and more complex modulations is demonstrated as a way to increase energy efficiency of FM-UWB. Multi-user communication over a single Radio Frequency (RF) channel is explored in more depth and multi-channel transmission is proposed as an extension of standard FM-UWB. The two techniques provide means of decreasing network latency, improving performance, and allow the FM-UWB to accommodate the increasing number of sensor nodes in the emerging applications such as High-Density Wireless Sensor Networks.

show abstract

A LNA-merged RF front-end with digitally assisted technique for gain flatness and input-match compensation

Liu

Chen

et al. 2019

Analog Integr Circ Sig Process

View full text Add to dashboard Cite

A Fully Integrated Wideband FM Transceiver for Low Data Rate Autonomous Systems

Cited by 30 publications

References 19 publications

An Ultra-Low Power Turning Angle Based Biomedical Signal Compression Engine with Adaptive Threshold Tuning

An Ultra-Low Power Turning Angle Based Biomedical Signal Compression Engine with Adaptive Threshold Tuning

FM-UWB: Towards a Robust, Low-Power Radio for Body Area Networks

A LNA-merged RF front-end with digitally assisted technique for gain flatness and input-match compensation

Contact Info

Product

Resources

About