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Importance of Symbol Equity in Coded Modulation for Power Line Communications (1301.2041v2)
Published 10 Jan 2013 in cs.IT and math.IT
Abstract: The use of multiple frequency shift keying modulation with permutation codes addresses the problem of permanent narrowband noise disturbance in a power line communications system. In this paper, we extend this coded modulation scheme based on permutation codes to general codes and introduce an additional new parameter that more precisely captures a code's performance against permanent narrowband noise. As a result, we define a new class of codes, namely, equitable symbol weight codes, which are optimal with respect to this measure.