A Generic Framework for Optimizing Digital Intensive Harmonic Rejection Receivers

Li, Chunshu; Li, Min; Verhelst, Marian; Bourdoux, André; Borremans, Jonathan; Pollin, Sofie; Chiumento, Alessandro; Perre, Liesbet Van der; Lauwereins, Rudy

doi:10.1109/sips.2012.40

Cited by 5 publications

(6 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The required flexible down-mixing is commonly implemented using switching mixers. One big challenge of this approach is the harmonic down-mixing problem: odd-order harmonics caused by the switching mixer will down-mix RF interfering signals present at multiples of the receive frequency band to the baseband in the Rx, distorting the desired signal [15].…”

Section: Wide Band Transceivers With Harmonic Rejectionmentioning

confidence: 99%

Opportunities and Challenges of Digital Signal Processing in Deeply Technology-Scaled Transceivers

Khalaf

et al. 2014

J Sign Process Syst

Self Cite

View full text Add to dashboard Cite

The ever improving cost advantages and processing capabilities of the technology have been happening according to the so-called Moore's Law. Although digital circuits can significantly benefit from the aggressive scaling, it is very controversial for analog circuit. However, analog circuit still has to follow the scaling trend because a single chip integration offers key commercial advantages. To optimally achieve the best performance/power/cost tradeoff with deeply scaled technology nodes, there is a clear trend and paradigm shift towards digital intensive and digitally assisted transceivers. Successes of such transceivers have been proven for individual transceiver components and narrow band systems. When targeting emerging communication standards, higher carrier frequencies, further technology scaling and reconfigurable radios, required signal processing design and implementation are orders of magnitudes more challenging but potential gains are promising. Based on a variety of transceiver designs implementing emerging architectures for different sub-6 GHz and 60 GHz communication systems, we will highlight the key challenges and opportunities experienced using 40 nm and 28 nm technology nodes.

show abstract

Section: Wide Band Transceivers With Harmonic Rejectionmentioning

confidence: 99%

Opportunities and Challenges of Digital Signal Processing in Deeply Technology-Scaled Transceivers

Khalaf

et al. 2014

J Sign Process Syst

Self Cite

View full text Add to dashboard Cite

show abstract

“…Examples of different HRM design methods can be found in [9] and [10]. These differ from the N-path filter in terms of the design criteria and the availability of the 2nd mixer sequence.…”

Section: Relation To Prior Workmentioning

confidence: 99%

“…Third, improving the in band SNR and out of band signal rejection requires an increase of the number of time slots M in one period (i.e., the system has to run at a higher clock frequency). Fourth, the optimal sequences in (12) are also used in HRMs [4], [9], [10].…”

Section: Staircase Sequencesmentioning

confidence: 99%

Mixer sequence design for N-path filters

Su¹,

Redfern²

2014

2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

View full text Add to dashboard Cite

show abstract

“…The required flexible mixing is commonly implemented using switching mixers. One big challenge of this approach is the harmonic mixing problem [11].…”

Section: Wide Band Transceivers With Harmonic Rejectionmentioning

confidence: 99%

“…Digital intensive compensation scheme has been proposed to firstly estimate the phase and gain mismatch among the mixing paths, and then computes the optimal digital recombination weights for the mixing paths. For computing the optimal digital recombination weights for the mixing paths, building on the developed mathematical framework presented in [11], the coefficients for path recombination for interference estimation can be derived by Eqn. (1)…”

Section: Wide Band Transceivers With Harmonic Rejectionmentioning

confidence: 99%

Signal processing challenges for emerging digital intensive and digitally assisted transceivers with deeply scaled technology (Invited)

Min

Khalaf

et al. 2013

SiPS 2013 Proceedings

Self Cite

View full text Add to dashboard Cite

Mainstream foundries are leaping toward 14nm node and beyond. Although aggressive scaling can substantially improve digital circuit, it is very controversial for analog circuit. However, analog circuit still has to follow the scaling trend because a single chip integration offers key commercial advantages. To optimally achieve the best performance/power/cost tradeoff with deeply scaled technology nodes, there is a clear trend and paradigm shift towards digital intensive and digitally assisted transceivers. Successes of such transceivers have been proven for individual transceiver components and narrow band systems. When targeting emerging communication standards, higher carrier frequencies, further technology scaling and reconfigurable radios, required signal processing design and implementation are orders of magnitudes more challenging but potential gains are promising. Illustrated with a variety of transceivers representing emerging architectures designed for different sub-6Ghz and 60Ghz communication systems, we will depict key challenges that we experienced in our design and optimization process with 40nm and 28nm technology nodes. 324 2013 IEEE Workshop on Signal Processing Systems 978-1-4673-6238-2/13 $31.00

show abstract

A Generic Framework for Optimizing Digital Intensive Harmonic Rejection Receivers

Cited by 5 publications

References 10 publications

Opportunities and Challenges of Digital Signal Processing in Deeply Technology-Scaled Transceivers

Opportunities and Challenges of Digital Signal Processing in Deeply Technology-Scaled Transceivers

Mixer sequence design for N-path filters

Signal processing challenges for emerging digital intensive and digitally assisted transceivers with deeply scaled technology (Invited)

Contact Info

Product

Resources

About