An Opportunistic Error Correction Layer for OFDM Systems

Autor: Xiaoying Shao, Roel Schiphorst, Cornelis H. Slump

Publikováno v: EURASIP Journal on Wireless Communications and Networking, Vol 2009 (2009)

We propose a novel cross layer scheme to reduce the power consumption of ADCs in OFDM systems. The ADCs in a receiver can consume up to 50% of the total baseband energy. Our scheme is based on resolution-adaptive ADCs and Fountain codes. In a wireles

Externí odkaz: https://doaj.org/article/acdff10604294ef493b4f6dffd5bcbd0

Multiyear Trans-Horizon Radio Propagation Measurements at 3.5 GHz

Autor: Roel Schiphorst, Sjoert R. Fleurke, Ben A. Witvliet, Loek C. Colussi, Herman W. M. Teinsma, Johan Griffioen, Mark J. Bentum, Erik van Maanen

Publikováno v: Colussi, L C, Schiphorst, R, Teinsma, H W M, Witvliet, B A, Fleurke, S R, Bentum, M J & Griffioen, J 2018, ' Multiyear Trans-Horizon Radio Propagation Measurements at 3.5 GHz ', IEEE Transactions on Antennas and Propagation, vol. 66, no. 2, 8239680, pp. 884-896 . https://doi.org/10.1109/TAP.2017.2786305

The design, realization, and measurement results of a high-accuracy multiyear 3.5 GHz trans-horizon radio propagation measurement system are discussed, with both emphasis on the results and implemented technical measures to enhance the accuracy and o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f3d520bf3ce142e0c954c40c9576532
https://doi.org/10.1109/tap.2017.2786305

Measuring the Isolation of the Circularly Polarized Characteristic Waves in NVIS Propagation [Measurements Corner]

Autor: George J. Petersen, Albert J. Westenberg, Ben A. Witvliet, Cornelis H. Slump, Mark J. Bentum, Erik van Maanen, Roel Schiphorst

Publikováno v: IEEE Antennas and Propagation Magazine. 57:120-145

Separate excitation of the characteristic waves in the ionosphere results in two orthogonal propagation channels on the same frequency, which may be used in diversity and multiple-input, multiple-output (MIMO) systems. In this article, a method to me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::27d9bdd030a5338d641720db2ac1629e
https://doi.org/10.1109/map.2015.2445633

Spectrum sharing metrics

Autor: Peter Anker, Jan Kruys, Roel Schiphorst

Publikováno v: info. 16:19-31

Purpose – The purpose of this paper is to propose technology-independent metrics for measuring spectrum utilization efficiency and spectrum sharing which could prove useful in spectrum management. Radio spectrum is considered a scarce resource. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c29f71606a74f2570493cfea9238818c
https://doi.org/10.1108/info-03-2014-0013

Interference Measurements in IEEE 802.11 Communication Links Due to Different Types of Interference Sources

Autor: Roel Schiphorst, Taco Kluwer, Cornelis H. Slump, Jan-Willem van Bloem

Publikováno v: Proceedings of the 8th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2012, 1-6
STARTPAGE=1;ENDPAGE=6;TITLE=Proceedings of the 8th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2012

The number of wireless devices (smartphones, laptops, sensors) that use the 2.4 GHz ISM band is rapidly increasing. The most common communication system in this band is Wi-Fi (IEEE 802.11b/g/n). For that reason coexistence between Wi-Fi and other sys

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::387967f825edf55cb94d6310e2261a7e
https://doi.org/10.1109/wicom.2012.6478551