RT Conference Proceedings
T1 Joint Turbo coding and source-controlled modulation of cycle-stationary sources in the bandwidth-limited regime
A1 Ochoa, Idoia
A1 Crespo, Pedro M.
A1 Del Ser, Javier
A1 Hernaez, Mikel
AB In this paper we propose a novel one-layer coding/shaping transmission system for the bandwidth-limited regime based on singlelevel codes and sigma-mapping [1]. Specifically, we focus on cyclestationary information sources with independent symbols. High spectral efficiencies can be achieved by combine at the transmitter a Turbo code with a sigma-mapper. Furthermore, the encoded symbols are modulated by using an asymmetric energy allocation technique before entering the aforementioned sigma-mapper. The corresponding decoder iterates between the Turbo decoder and the sigma-demapper, which exchange progressively refined extrinsic probabilities of the encoded symbols. For the Additive White Gaussian Noise (AWGN) channel, simulation results obtained for very simple Turbo codes show that the proposed system attains low bit error rates at signal-to-noise ratios relatively close to the corresponding Shannon limit. These promising results pave the way for future investigations towards reducing the aforementioned energy gap, e.g. by utilizing more powerful Turbo codes.
SN 3642166431
SN 9783642166433
SN 1867-8211
YR 2010
FD 2010
LK https://hdl.handle.net/11556/2377
UL https://hdl.handle.net/11556/2377
LA eng
NO Ochoa , I , Crespo , P M , Del Ser , J & Hernaez , M 2010 , Joint Turbo coding and source-controlled modulation of cycle-stationary sources in the bandwidth-limited regime . in Mobile Lightweight Wireless Systems - Second International ICST Conference, MOBILIGHT 2010, Revised Selected Papers . Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering , vol. 45 LNICST , pp. 618-625 , 2nd International ICST Conference on Mobile Lightweight Wireless Systems, MOBILIGHT 2010 , Barcelona , Spain , 10/05/10 . https://doi.org/10.1007/978-3-642-16644-0_53
NO conference
DS TECNALIA Publications
RD 7 sept 2024