V. Peiris

Publications (8)4.7 Total impact

• Conference Proceeding: A 1V RF SoC with an 863-to-928MHz 400kb/s radio and a 32b Dual-MAC DSP core for Wireless Sensor and Body Networks

  E. Le Roux, N. Scolari, B. Banerjee, C. Arm, P. Volet, D. Sigg, P. Heim, J.-F. Perotto, F. Kaess, N. Raemy, [......], D. Ruffieux, M. Contaldo, F. Giroud, D. Severac, M. Morgan, S. Gyger, C. Monneron, Thanh-Chau Le, C. Henzelin, V. Peiris
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  ABSTRACT: A 150¿A/MHz DSP with two MAC/cycle instructions is integrated with a configurable 863-to-928MHz RF transceiver that yields 3.5mW in continuous reception, 2¿C per channel sampling and 40mW for 10dBm output. The SoC includes voltage converters that allow 1.0-to-1.8V or 2.7-to-3.6V primary voltage supplies. In sleep mode, it consumes 1¿A with a 32kHz crystal-based RTC running.
  Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2010 IEEE International; 03/2010
• Conference Proceeding: A 1 V 433/868 MHz 25 kb/s-FSK 2 kb/s-OOK RF transceiver SoC in standard digital 0.18 μm CMOS

  V. Peiris, C. Arm, S. Bories, S. Cserveny, F. Giroud, P. Graber, S. Gyger, E. Le Roux, T. Melly, M. Moser, O. Nys, F. Pengg, P.-D. Pfister, N. Raemy, A. Ribordy, P.-F. Ruedi, D. Ruffieux, L. Sumanen, S. Todeschin, P. Volet
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  ABSTRACT: A 1 V wireless SoC embedding an RF transceiver, a sensor interface, a 6.4 MHz RISC micro-controller with an 8k instruction SRAM and a power management unit is reported. The radio supports 25 kb/s FSK and 2 kb/s OOK modulations in the 433/868 MHz bands. In the 433 MHz band, the receiver draws 2.1 mA while providing a sensitivity of -108 dBm and the transmitter draws 27.6 mA for an output power of 10.5 dBm.
  Solid-State Circuits Conference, 2005. Digest of Technical Papers. ISSCC. 2005 IEEE International; 03/2005
• Source

  Available from: pitt.edu

  Article: WiseNET: an ultralow-power wireless sensor network solution

  C. C. Enz, A. El-Hoiydi, J.-D. Decotignie, V. Peiris
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  ABSTRACT: A wireless sensor network consists of many energy-autonomous microsensors distributed throughout an area of interest. Each node monitors its local environment, locally processing and storing the collected data so that other nodes can use it. To optimize power consumption, the Swiss Center for Electronics and Microtechnology has developed WiseNET, an ultralow-power platform for the implementation of wireless sensor networks that achieves low-power operation through a careful codesign approach. The WiseNET platform uses a codesign approach that combines a dedicated duty-cycled radio with WiseMAC, a low-power media access control protocol, and a complex system-on-chip sensor node to exploit the intimate relationship between MAC-layer performance and radio transceiver parameters. The WiseNET solution consumes about 100 times less power than comparable solutions.
  Computer 09/2004; 37(8):62- 70. · 1.47 Impact Factor
• Article: A 1.2 mW RDS receiver for portable applications

  D. Ruffieux, T. Melly, V. Peiris, J.-F. Perotto, N. Raemy, E. Le Roux
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  ABSTRACT: A 0.9 V 1.2 mA fully integrated radio data system (RDS) receiver for the 88-108 MHz FM broadcasting band is presented. Requiring only a few external components (matching network, VCO inductors, loop filter components), the receiver, which has been integrated in a standard digital 0.18 μm CMOS technology, achieves a noise figure of 5 dB and a sensitivity of -86dBm. The circuit can be configured and the RDS data retrieved via an I²C interface so that it can very simply be used as a peripheral in any portable application. A 250 kHz low-IF architecture has been devised to minimize the power dissipation of the baseband filters and FM demodulator. The frequency synthesizer consumes 250 μA, the RF front-end 450 μA while providing 40 dB of gain, the baseband filter and limiters 100 μA, and the FM and BPSK analog demodulators 300 μA. The chip area is 3.6 mm².
  IEEE Journal of Solid-State Circuits 08/2004; · 3.23 Impact Factor
• Source

  Available from: psu.edu

  Conference Proceeding: A 0.6mA, 0.9V 100MHz FM front-end in a 0.18μm CMOS-D technology

  T. Melly, E. Le Roux, D. Ruffieux, V. Peiris
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  ABSTRACT: A sub-IV analog front-end for the FM 88-108MHz broadcasting band is presented. This front-end includes a LNA, two RF amplifiers, I-Q down converters, on chip active polyphase and low-pass filters. An RSSI and limiting amplifiers are included too. The total current consumption is only 600μA for a global NF of 5dB. This front-end is suitable for FM and further RDS demodulation.
  Solid-State Circuits Conference, 2003. ESSCIRC '03. Proceedings of the 29th European; 10/2003
• Source

  Available from: imec.be

  Conference Proceeding: A low voltage, low power VCO for the 88-108MHz FM broadcasting band

  D. Ruffieux, E. Le Roux, T. Melly, V. Peiris
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  ABSTRACT: A low power, low voltage, VCO for the 88-108MHz FM broadcasting band is presented. Capable of functioning down to a supply voltage as low as 0.9V (end of life voltage of an alkaline battery) under all process corners and over an industrial temperature range (-25°C to 75°C), the VCO, running at twice the FM frequency band achieves a tuning range of 30%, a phase noise of -103dBc/Hz @ 120kHz offset and features an amplitude regulation mechanism to limit is power dissipation to 180μA. Quadrature LO signals necessary in direct conversion receiver architectures are obtained with a SCL double cross-coupled latch divider-by-2 for another 50μA.
  Solid-State Circuits Conference, 2003. ESSCIRC '03. Proceedings of the 29th European; 10/2003
• Article: WiseNET - An Ultralow-Power Solution for Wireless Sensor Networks

  C. C. Enz, A. El-Hoiydi, J.-D. Decotignie, A.-S. Porret, T. Melly, V. Peiris
• Source

  Available from: uci.edu

  Article: The Ultra Low-Power WiseNET System

  A. El-Hoiydi, C. Arm, R. Caseiro, S. Cserveny, J.-D. Decotignie, C. Enz, F. Giroud, S. Gyger, E. Leroux, T. Melly, V. Peiris, F. Pengg, P.-D. Pfister, N. Raemy, A. Ribordy, D. Ruffieux, P. Volet