A Spectrum-Efficient Data Modulation Scheme for Internet-of-Things Applications

With the proliferation of wireless sensor networks, the high-density of sensing data is imposing a significant challenge on spectrum management to share the existing bandwidth. In this paper, a spectrum efficient data encoding scheme is proposed using a set of analog orthogonal modified Hermite pulses. The novelty of this approach is to use an analog pulse-sequence based data encoding scheme, that reduces multi-user interference and supports more data by sharing the same network bandwidth. The serial-parallel data transmission techniques are proposed using a set of distinct pulse sequences instead of a single pulse. The analog pulse set generation and the pulse encoding scheme is analyzed through MATLAB simulation package. Simulation results show that the proposed data encoding scheme will provide 6-times improvement in data rate for 4 distinct orthogonal pulses. The proposed scheme will be a promising feature for high density larger array sensor signal monitoring in a wireless sensor network.

[1]  Musaab Hasan,et al.  Design and Implementation of FHSS and DSSS for Secure Data Transmission , 2015 .

[2]  Jun Wang,et al.  Ubiquitous healthcare system using emergency strategy based on wireless body area system , 2016, 2016 5th International Conference on Computer Science and Network Technology (ICCSNT).

[3]  Peter Händel,et al.  Spectral efficient IR-UWB communication design for low complexity transceivers , 2014, EURASIP J. Wirel. Commun. Netw..

[4]  Kobchai Dejhan,et al.  A 0.18 μm CMOS Gaussian Monocycle Pulse Circuit Design for UWB , 2006, APCCAS 2006 - 2006 IEEE Asia Pacific Conference on Circuits and Systems.

[5]  Jungwoon Park,et al.  An IR-UWB CMOS Transceiver for High-Data-Rate, Low-Power, and Short-Range Communication , 2019, IEEE Journal of Solid-State Circuits.

[6]  Shuai Gu,et al.  DSSS O-QPSK simulation and analysis in technology of ZigBee , 2010, Proceedings of the 29th Chinese Control Conference.

[7]  Lutfiye Durak-Ata,et al.  Spectrally Efficient OFDMA Lattice Structure via Toroidal Waveforms on the Time-Frequency Plane , 2010, EURASIP J. Adv. Signal Process..

[8]  Santosh Itraj,et al.  A Review on MIMO OFDM Technology Basics and More , 2017, 2017 International Conference on Current Trends in Computer, Electrical, Electronics and Communication (CTCEEC).

[9]  Lutfiye Durak-Ata,et al.  An efficient transceiver design for superimposed waveforms with orthogonal polynomials , 2017, 2017 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom).

[10]  Mohammad Rafiqul Haider,et al.  An efficient orthogonal pulse set generator for high-speed sub-GHz UWB communications , 2014, 2014 IEEE International Symposium on Circuits and Systems (ISCAS).

[11]  Manijeh Keshtgary,et al.  An Efficient Wireless Sensor Network for Precision Agriculture , 2012 .

[12]  Rosdiadee Nordin,et al.  Energy-Efficient Wireless Sensor Networks for Precision Agriculture: A Review , 2017, Sensors.

[13]  Mongi Lahiani,et al.  Design of a pulse generator for UWB communications , 2013, 10th International Multi-Conferences on Systems, Signals & Devices 2013 (SSD13).

[14]  Fumihide Kojima,et al.  Subdividing One Channel of 5GHz Wireless LAN into Narrow Channels for Factory IoT , 2018, 2018 21st International Symposium on Wireless Personal Multimedia Communications (WPMC).

[15]  Ali Hamou,et al.  A Survey Of Wireless Communications for IoT Echo-Systems , 2019, 2019 IEEE Canadian Conference of Electrical and Computer Engineering (CCECE).

[16]  Rahul Johari,et al.  IOT based Electrical Device Surveillance and Control System , 2019, 2019 4th International Conference on Internet of Things: Smart Innovation and Usages (IoT-SIU).