Special Issue "Feature Papers"

Guest Editor
Prof. Dr. Stefan Fischer
University of Lübeck, Institute of Telematics, Ratzeburger Allee 160, Building 64, 2nd Floor, Room 39, D-23562 Lübeck, Germany
Website: http://www.itm.uni-luebeck.de/users/fischer/
E-Mail: fischer@itm.uni-luebeck.de
Phone: +49 451 500 5380
Fax: +49 451 500 5382
Interests: wireless sensor networks; WSN experimental facilities; software architectures for WSNs; applications of WSNs

Dear Colleagues,

We plan to publish a special issue on "feature papers" in order to give a broad overview of our area. We are looking for top quality papers which will be published free of charge in Open Access form. Authors will be the editorial board members and researchers invited by the editorial office and the Editor-in-Chief. Papers could be both long research papers and papers describing the current state of the art in one of the areas covered by the journal.

Prof. Dr. Stefan Fischer
Guest Editor

Submission

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. Papers will be published continuously (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are refereed through a peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Sensor and Actuator Networks is an international peer-reviewed Open Access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. For the first couple of issues the Article Processing Charge (APC) will be waived for well-prepared manuscripts. English correction and/or formatting fees of 250 CHF (Swiss Francs) will be charged in certain cases for those articles accepted for publication that require extensive additional formatting and/or English corrections.

Type of Paper: Article
Title: Physical Layer Design in Wireless Sensor Networks for Fading Mitigation
Authors: Stevan Berber ¹ and Nuo Chen ²
Affiliations: ¹ The University of Auckland, ECE Department , 38 Princes Street, Auckland 1010, New Zealand, E-Mail: s.berber@auckland.ac.nz; Tel.: +64-9238966; Fax: +64-3737 461,
² The University of Auckland, ECE Department , 38 Princes Street, Auckland 1010, New Zealand,
Abstract: This paper presents the theoretical analysis, simulation results and suggests design in digital technology of a physical layer for wireless sensor networks. The proposed design is able to mitigate fading inside communication channel. To mitigate fading the chip interleaving technique is proposed. For the proposed theoretical model of physical layer, a rigorous mathematical analysis is conducted, where all signals are presented and processed in discrete time domain form suitable for further direct processing necessary for devices design in digital technology. Three different channels are used to investigate characteristic of the physical layer: additive white Gaussian noise channel (AWGN), AWG noise and flat fading channel and AWG noise and flat fading channel with interleaver and deinterleaver blocks in the receiver and transmitter respectively. Firstly, the mathematical model of communication system representing Physical Layer is developed based on the discrete time domain signal representation and processing. In the existing theory these signals and their processing are represented in continuous time form, which is not suitable for direct implementation in digital technology. Secondly, the expressions for the probability of chip, symbol and bit error are derived. Thirdly, simulators are developed in MATLAB that confirmed theoretical results.
Keywords: wireless sensor networks; physical layer; fading channel; BER