Title :
Capacity evaluation with channel estimation error for the Decode-and-Forward relay PLC networks
Author :
Bo Tan ; Thompson, John
Author_Institution :
Inst. for Digital Commun., Univ. of Edinburgh, Edinburgh, UK
fDate :
Aug. 29 2011-Sept. 2 2011
Abstract :
In this paper, the achievable information rates of three Decode-and-Forward (DF) relay protocols are investigated with linear minimum mean square error (LMMSE) channel estimation in powerline communications (PLC) networks. Analysis of how the channel estimation errors impact the performance of unidirectional and bidirectional relay protocols is given. Realistic simulations are performed to evaluate the performance for varying the number of pilot Orthogonal Frequency-Division Multiplexing (OFDM) symbols and the robustness of different protocols is discussed. Solutions for how to mitigate the impact of channel and noise on the protocol to maximise performance are also discussed.
Keywords :
OFDM modulation; carrier transmission on power lines; channel capacity; channel estimation; decode and forward communication; least mean squares methods; protocols; relay networks (telecommunication); wireless channels; DF relay protocol; LMMSE; OFDM; bidirectional relay protocol; channel capacity evaluation; channel estimation error; decode-and-forward relay PLC network; linear minimum mean square error; orthogonal frequency-division multiplexing; performance evaluation; powerline communication network; unidirectional relay protocol; Channel estimation; Frequency-domain analysis; Information rates; Noise; OFDM; Protocols; Relays;
Conference_Titel :
Signal Processing Conference, 2011 19th European
Conference_Location :
Barcelona
