NDLI: An improved Fischer-Huber loading algorithm for reliable applications on access power line communications

Content Provider	IEEE Xplore Digital Library
Author	Linyu Wang Van Lil, E. Deconinck, G.
Copyright Year	2010
Description	Author affiliation: ESAT-ELECTA, K.U.Leuven, Kasteel Arenbergpark 10, Bus 2445, B-3001 Heverlee, Belgium (Deconinck, G.) \|\| ESAT-Telemic, K.U.Leuven., Kasteel Arenbergpark 10, Bus 2444, B-3001 Heverlee, Belgium (Linyu Wang; Van Lil, E.)
Abstract	The original Fischer-Huber loading algorithm attempts to minimize the probability of bit error by maximizing the signal to noise ratio. Bits are allocated to achieve the same error probability in each of the used subcarriers. However, in channels with a high difference in attenuation like access Power Line Communications (PLC) channels, this could result in overallocation for parts of the subcarriers, which is unreasonable in practice but is neglected during the bit allocation in the algorithm. Furthermore, after defining the upper boundary of constellation, the bit allocation is changed and then the method of flat power allocation generates a bad error probability. In this paper, we present an improved Fischer-Huber loading algorithm for access PLC channels with high attenuation variability. By adding constellation limitations and adjusting the power allocation policy, the improved algorithm appears more flexible. Simulation results show the improved performance.
Starting Page	1
Ending Page	5
File Size	406855
Page Count	5
File Format	PDF
e-ISBN	9780984589333
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-08-25
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	ICST
Subject Keyword	high attenuation variance Loading algorithm Bit rate Loading Bit error rate reliability Attenuation Resource management access PLC constellation limiation Signal to noise ratio
Content Type	Text
Resource Type	Article

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