Open Access

A Hybrid Single-Carrier/Multicarrier Transmission Scheme with Power Allocation

EURASIP Journal on Wireless Communications and Networking20072008:168032

https://doi.org/10.1155/2008/168032

Received: 11 May 2007

Accepted: 16 August 2007

Published: 19 August 2007

Abstract

We propose a flexible transmission scheme which easily allows to switch between cyclic-prefixed single-carrier (CP-SC) and cyclic-prefixed multicarrier (CP-MC) transmissions. This scheme takes advantage of the best characteristic of each scheme, namely, the low peak-to-average power ratio (PAPR) of the CP-SC scheme and the robustness to channel selectivity of the CP-MC scheme. Moreover, we derive the optimum power allocation for the CP-SC transmission considering a zero-forcing (ZF) and a minimum mean-square error (MMSE) receiver. By taking the PAPR into account, we are able to make a better analysis of the overall system and the results show the advantage of the CP-SC-MMSE scheme for flat and mild selective channels due to their low PAPR and that the CP-MC scheme is more advantageous for a narrow range of channels with severe selectivity.

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Authors’ Affiliations

(1)
Signal Processing Laboratory for Communications (DSPCom), State University of Campinas (UNICAMP)
(2)
Laboratory of Electronics and Communications, Conservatoire National des Arts et Métiers (CNAM)

Copyright

© Danilo Zanatta Filho et al. 2008

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.