Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
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TY - GEN
T1 - Low Complexity Turbo Equalisation for Power Line Communications
AU - Adebisi, Bamidele
AU - Lopez Giovaneli, Carlos
AU - Honary, Bahram
AU - Mowlavi, Mohammad
PY - 2007/3
Y1 - 2007/3
N2 - Due to the highly dispersive nature of the power line channel, there has been a strong trend towards the use of orthogonal frequency division multiplexing (OFDM) modulation for wideband power line communications (PLC). However, OFDM modulation has the drawbacks of high peak-to-average power ratio and increased sensitivity to carrier synchronisation errors. On the other hand, single-carrier (SC) modulation techniques do not suffer from these problems and they are widely used in low-rate narrowband PLC. For broadband PLC, however, the strong intersymbol interference (ISI) introduced by the power line channel calls for the use of powerful coding and equalisation techniques, such as turbo coding/equalisation. In this paper, we investigate the performance of the so-called soft interference cancellers (SIC) techniques for turbo equalisation (TE) in PLC applications. The results of simulations over powerline channels with different amounts of memory show that, after performing some number of iterations, the SIC-based TE scheme outperforms a COFDM system that uses the same turbo code, over the entire range of SNR values.
AB - Due to the highly dispersive nature of the power line channel, there has been a strong trend towards the use of orthogonal frequency division multiplexing (OFDM) modulation for wideband power line communications (PLC). However, OFDM modulation has the drawbacks of high peak-to-average power ratio and increased sensitivity to carrier synchronisation errors. On the other hand, single-carrier (SC) modulation techniques do not suffer from these problems and they are widely used in low-rate narrowband PLC. For broadband PLC, however, the strong intersymbol interference (ISI) introduced by the power line channel calls for the use of powerful coding and equalisation techniques, such as turbo coding/equalisation. In this paper, we investigate the performance of the so-called soft interference cancellers (SIC) techniques for turbo equalisation (TE) in PLC applications. The results of simulations over powerline channels with different amounts of memory show that, after performing some number of iterations, the SIC-based TE scheme outperforms a COFDM system that uses the same turbo code, over the entire range of SNR values.
KW - Power line communications
KW - frequency-selective fading channels
KW - soft interference cancellation equalisers
KW - turbo equalisation
U2 - 10.1109/ISPLC.2007.371155
DO - 10.1109/ISPLC.2007.371155
M3 - Conference contribution/Paper
SN - 1-4244-1090-8
SP - 385
EP - 389
BT - Power Line Communications and Its Applications, 2007. ISPLC '07. IEEE International Symposium on
PB - IEEE
CY - Pisa, Italy
ER -