A review on modulation techniques in multiband-orthogonal frequency division multiplexing in ultra-wideband channel

Author

Din, Chempaka Mohd ; Mansor, Wahidah ; Mohamad, Roslina

Author_Institution

Fac. of Electr. Eng., Univ. Teknol. MARA, Shah Alam, Malaysia

fYear

2011

fDate

20-23 March 2011

Firstpage

576

Lastpage

582

Abstract

This paper describes a review on mapping or modulation techniques used in multiband orthogonal frequency division multiplexing (MB-OFDM) in ultra-wideband (UWB) channel. QAM, BPSK and QPSK modulation techniques are commonly used in this system due to their smooth power spectrum, low bit error rate (BER) and low receiver complexity. The new constant envelop modulation technique is proposed since it has the capability to improve the power spectrum density and BER performance. Continuous phase modulation (CPM) scheme could be used to reduce the complexity at the receiver. The constant envelop characteristics of CPM has to be analyzed in order to adapt this scheme in (MB-OFDM) UWB system.

Keywords

OFDM modulation; communication complexity; continuous phase modulation; error statistics; quadrature amplitude modulation; quadrature phase shift keying; radio receivers; ultra wideband communication; wireless channels; BER performance; BPSK; MB-OFDM UWB system; QAM; QPSK; UWB channel; bit error rate; continuous phase modulation; mapping technique; modulation technique; multiband-orthogonal frequency division multiplexing; power spectrum density; receiver complexity; ultra-wideband channel; Bit error rate; Complexity theory; Matched filters; OFDM; Phase shift keying; Receivers; Continuous Phase Modulation; Multiband OFDM; Ultra-Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers & Informatics (ISCI), 2011 IEEE Symposium on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-61284-689-7

Type

conf

DOI

10.1109/ISCI.2011.5958980

Filename

5958980