Innovative PLC network design for bit loading algorithm and bistatic channel capacity

Block transmission is a very efficient scheme to combat with infer-symbol interference (ISI) caused by frequency-selective time-dispersive channels at the cost of interblock interference (IBI) occurring during block transmission. In particular, in order to suppress the IBI in the power-line communic...

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Vydané v:2009 IEEE 13th International Symposium on Consumer Electronics s. 447 - 451
Hlavný autor: Tae-Eung Sung
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 01.05.2009
Predmet:
Algorithm design and analysis
bistatic channel capacity
bit loading algorithm
Block transmission
Channel capacity
Costs
Frequency
Home appliances
Impedance
interblock interference (IBI)
Intersymbol interference
lifting-trailing-zeros (LTZ)
power-line communications (PLC)
Programmable control
Time-varying channels
Voltage
ISBN:1424429757, 9781424429752
ISSN:0747-668X
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Shrnutí:Block transmission is a very efficient scheme to combat with infer-symbol interference (ISI) caused by frequency-selective time-dispersive channels at the cost of interblock interference (IBI) occurring during block transmission. In particular, in order to suppress the IBI in the power-line communication (PLC) channel, we introduce a novel technique called lifting-trailing-zeros (LTZ). The power line channel is time-varying due to the appliances connected to outlets since appliances often exhibit input impedance that is a function of the instantaneous amplitude of the mains voltage which results in a periodically time-varying channel response. We here propose a discrete time-varying block channel model in the time domain, which allows for more realistic evaluation of modulation and coding strategies as well as for the design of bit loading strategies that can be resilient to the peculiar type of distortion in this harsh medium. Numerical results demonstrate the effectiveness of the proposed power line network simulator for bistatic channel capacity with water-filling which is compared with constant power bit-loading algorithm.
ISBN:1424429757
9781424429752
ISSN:0747-668X
DOI:10.1109/ISCE.2009.5157065