OFDM-CPM for MIMO wireless communication: signal detection and performance

Author

Clara, Richard I. ; Rao, Raveendra K.

Author_Institution

Primus Centre for Telecommun., Univ. of Western Ontario, London, Ont.

fYear

2005

fDate

1-4 May 2005

Firstpage

1388

Lastpage

1391

Abstract

Multiple-input multiple-output systems have created quite a stir in recent wireless communications research due to its ability to increase system capacity as well as improve performance. In this paper we propose orthogonal frequency division multiplexing-continuous phase modulation (OFDM-CPM) for MIMO channels. The MIMO channels are achieved through the use of complex orthogonal space-time block codes. Algorithms for optimum as well as easy to implement suboptimum detection and structure of the detector are derived for the detection of OFDM-CPM signals in the MIMO framework. Performances of both optimum and suboptimum detectors are given in terms of the various system and modulation parameters. Computer simulations over multi-path fading channels show that the proposed OFDM-CPM in MIMO scenario offers considerable improvement relative to conventional OFDM-MIMO systems that use PSK/QPSK mappings and identical space-time coding

Keywords

MIMO systems; OFDM modulation; block codes; channel capacity; channel coding; continuous phase modulation; fading channels; multipath channels; quadrature phase shift keying; signal detection; space-time codes; wireless channels; MIMO channels; MIMO wireless communication; OFDM-CPM; QPSK mappings; complex orthogonal space-time block codes; computer simulations; multipath fading channels; multiple-input multiple-output systems; orthogonal frequency division multiplexing-continuous phase modulation; performance improvement; signal detection; suboptimum detection; Block codes; Computer simulation; Detectors; Fading; Frequency division multiplexing; MIMO; Phase modulation; Phase shift keying; Signal detection; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2005. Canadian Conference on

Conference_Location

Saskatoon, Sask.

ISSN

0840-7789

Print_ISBN

0-7803-8885-2

Type

conf

DOI

10.1109/CCECE.2005.1557238

Filename

1557238