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

fYear

2011

fDate

Aug. 29 2011-Sept. 2 2011

Firstpage

834

Lastpage

838

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Conference, 2011 19th European

Conference_Location

Barcelona

ISSN

2076-1465

Type

conf

Filename

7074091