naa a22 4500 510793428 CHVBK 20180411083327.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11277-013-1109-9 doi (NATIONALLICENCE)springer-10.1007/s11277-013-1109-9 Pouttu Ari University of Oulu, Centre for Wireless Communications, P.O. Box 4500, 90014, University of Oulu, Finland aut Performance Analysis of Combined $$m$$ MCSK- $$m$$ MFSK Modulation in AWGN and Rayleigh Fading Channel [Elektronische Daten] [Ari Pouttu] As there are many use cases considered for robotics communications, the data rate variation may be very large. Some sensor applications may require very low data rate, telemetry data may require low-to-medium data rates and e.g. video application will require high data rates. On the other hand, robots may have to operate in very difficult radio propagation environments such as nuclear power plants or industrial facilities. To combat difficult propagation characteristics, an often used and well known mechanism is to use spread spectrum signal structures. Thus in this paper a novel modulation method is considered which offers the inherent signal structure and processing opportunities of spread spectrum signal and at the same time offers an easy mechanism to adapt the data rate from low to high depending on the requirement at hand thus addressing two important communication requirements for robotics. The introduction of $$m$$ MFSK generated the idea of applying the given approach to other modulation methods. To further enlarge the modulation alphabet sizes (with the price of larger spectrum usage) it was realized that combining the $$m$$ MFSK and $$m$$ MCSK would be an interesting choice. The $$m$$ MCSK- $$m$$ MFSK modulation is hence considered. A method to analyze this two-component modulation is developed and the performance analyses give results for $$m$$ MCSK- $$m$$ MFSK modulation in AWGN and flat Rayleigh fading channels for both coherent and non-coherent receivers. The performance was also assessed with orthogonal and non-orthogonal code constructs for coherent receiver. Springer Science+Business Media New York, 2013 $$m$$ MCSK nationallicence $$m$$ MFSK nationallicence Modulation method nationallicence Performance analysis nationallicence Spectrum efficiency nationallicence Wireless Personal Communications Springer US; http://www.springer-ny.com 70/3(2013-06-01), 1199-1220 0929-6212 70:3<1199 2013 70 11277 https://doi.org/10.1007/s11277-013-1109-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-013-1109-9 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Pouttu Ari University of Oulu, Centre for Wireless Communications, P.O. Box 4500, 90014, University of Oulu, Finland aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 70/3(2013-06-01), 1199-1220 0929-6212 70:3<1199 2013 70 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer