Improving Achievable Rates in MPSK Amplify-and-Forward Relay Networks via Clipping

Author

Zhang, Qi ; Yu, Fengqi ; Nallanathan, A.

Author_Institution

Dept. of Integrated Electron., Chinese Acad. of Sci., Shenzhen, China

Volume

59

Issue

5

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

2133

Lastpage

2137

Abstract

Companding techniques, which are conventionally considered to reduce the peak-to-average power ratio (PAPR) for orthogonal frequency-division-multiplexing (OFDM) systems, decrease the achievable rate. However, we propose to employ clipping, one of the companding techniques, to improve the achievable rates for M-ary phase-shift-keying (MPSK) amplify-and-forward (AF) cooperative communications in this paper. The improved achievable rate of the system is shown through numerical results. It is also found that among the conventional companding techniques, the clipping technique may achieve the highest transmission rate.

Keywords

OFDM modulation; compandors; phase shift keying; protocols; radio networks; M-ary phase-shift-keying; MPSK amplify-and-forward relay networks; clipping technique; companding techniques; cooperative communications; orthogonal frequency-division-multiplexing system; peak-to-average power ratio; wireless communication network; Achievable rate; amplify-and-forward (AF); clipping; companding; cooperative communication;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2010.2041678

Filename

5404404