Space-Frequency and Space-Time-Frequency M3FSK for Indoor Multiwire Communications

• Published in: IEEE transactions on power delivery Vol. 24; no. 4; pp. 2361 - 2367
• Main Authors: Adebisi, B., Ali, S., Honary, B.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.10.2009; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Channels; Coding; Communication cables; Electrical engineering. Electrical power engineering; Electrical power engineering; Exact sciences and technology; Fading; Frequency diversity; Frequency shift keying; Frequency-shift keying (FSK); Indoor; Intersymbol interference; intersymbol interference (ISI); Miscellaneous; MMFSK; Modulation; multicarrier modulation (MCM); multiwire; OFDM; Power cables; power line; Power networks and lines; power-line communications (PLC); Programmable control; Receiving; Signal to noise ratio; space-time frequency (STF); Three dimensional; Users connections and in door installation; Wideband; {\rm M} ^{3}{\rm FSK}; Performance evaluation; Electric energy transportation; intersymbol interference (ISI); M; space―time frequency (STF); SF; Indoor installation; Wide band; Frequency shift keying; Multilevel system; FSK; MMFSK; Fading; ST; multiwire; Electromagnetism; power line; Multichip module; power-line communications (PLC); Multiconductor line; multicarrier modulation (MCM); Frequency-shift keying (FSK); Three dimensional model; Intersymbol interference; Carrier transmission on power lines; System simulation; Power transmission line
• ISSN: 0885-8977; 1937-4208
• DOI: 10.1109/TPWRD.2009.2028495

This paper investigates the multiple emitting multiple receiving points diversity technique as one of the ways of meeting the tripartite conditions of high data rate, less transmit power, and low unwanted electromagnetic radiations of the frequency-selective power-line channels. To be resilient to the intersymbol interference present in frequency-selective fading, the diversity technique must be used in conjunction with wideband multicarrier modulation. We propose an efficient space-frequency and space-time-frequency (STF)-coded multitone M-ary multilevel frequency-shift keying (M 3 FSK) for high-rate indoor communications over the multiwire power-line channels. We show that coding by using three dimensions of space, frequency, and time, the STF system is capable of achieving up to 8-dB diversity gain. Simulation results are provided to demonstrate the performance improvement of the STF over other diversity schemes as well as over single-wire M 3 FSK systems in a highly impulsive power line.