Bit-loading algorithms for OFDM with adaptive cyclic prefix length in PLC channels

Author

Alessandro, Salvatore D. ; Tonello, Andrea M. ; Lampe, Lutz

Author_Institution

DIEGM - Univ. di Udine, Udine

fYear

2009

fDate

March 29 2009-April 1 2009

Firstpage

177

Lastpage

181

Abstract

The achievable rate of OFDM systems is not necessarily maximized when deploying a cyclic prefix (CP) as long as the channel impulse response. Even though for shorter CP lengths both inter-symbol and inter-carrier interference do occur, the rate gain offered by a shortened CP may exceed the losses due to interference. In this paper we address the problem of CP length adaptation and we propose practical bit-loading algorithms that include the CP adaptation.

Keywords

OFDM modulation; carrier transmission on power lines; electromagnetic interference; resource allocation; telecommunication channels; transient response; OFDM; adaptive cyclic prefix length; bit-loading algorithm; channel impulse response; inter-carrier interference; length adaptation; orthogonal frequency division multiplexing; power line communication system; resource allocation; Feedback; Interference; OFDM; Power line communications; Programmable control; Propagation losses; Resource management; Transmitters; Wireless LAN; Wireless communication; Home networks; OFDM; PLC; resource allocation;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Line Communications and Its Applications, 2009. ISPLC 2009. IEEE International Symposium on

Conference_Location

Dresden

Print_ISBN

978-1-4244-3790-0

Electronic_ISBN

978-1-4244-3792-4

Type

conf

DOI

10.1109/ISPLC.2009.4913425

Filename

4913425