Citation

Abstract

Radios operating in a slowly fading channel require adaptive communication links that adjust to channel conditions that are not always ideal. Matching a communication link's bit rate to the channel conditions is critical to maximize throughput. A fractional bits per symbol communication system is discussed as a possible method to better adapt to channel conditions. Sequences of constellations containing non-powers-of-2-points are used to facilitate the fractional-bits per symbol system and create multi-symbol waveforms. Equations governing sequences are described. Mapping schemes are explored as a method of mapping waveforms to binary strings. The relationship between sequence properties, length, number of points, and waveform utilization efficiency, are shown to affect the bit error rate.

Paper (PDF)

Paper (DOI)

Acknowledgements

• Canadian Space Agency (CSA), and
• New Brunswick Innovation Foundation (NBIF).

• University of New Brunswick ,
• Université de Moncton ,
• New Brunswick Community College ,
• Natural Sciences and Engineering Research Council, ,
• IEEE New Brunswick Section ,
• Atlantic Canada Aerospace and Defence Association ,
• Testforce , and
• Spirent .

• NanoAvionics ,
• Red Shift Labs ,
• ON Semiconductor , and
• Valispace .

Hashtags

#CubeSatCA, #CubeSatNB