Quasi-Orthogonal Space-Time Block Coding Using Polynomial Phase Modulation

Granados, Omar; Andrian, Jean
January 2011
ISRN Communications & Networking;2011, Special section p1
Academic Journal
Recently, polynomial phase modulation (PPM) was shown to be a power- and bandwidth-efficient modulation format. These two characteristics are in high demand nowadays specially in mobile applications, where devices with size, weight, and power (SWaP) constraints are common. In this paper, we propose implementing a full-diversity quasi-orthogonal space-time block code (QOSTBC) using polynomial phase signals as modulation format. QOSTBCs along with PPM are used in order to improve the power efficiency of communication systems with four transmit antennas. We obtain the optimal PPM constellations that ensure full diversity and maximize the QOSTBC's minimum coding gain distance. Simulation results show that by using QOSTBCs along with a properly selected PPM constellation, full diversity in flat fading channels and thus low BER at high signal-to-noise ratios (SNR) can be ensured. More importantly, it is also shown that QOSTBCs using PPM achieve a better error performance than those using conventional modulation formats.


Related Articles

  • A Blind Two-Stage Receiver for MIMO-CDMA Systems. Fuh-Hsin Hwang; Tsui-Tsai Lin // ISRN Communications & Networking;2011, Special section p1 

    A blind two-stage multiple-input multiple-output (MIMO) receiver is proposed for code-division multiple access (CDMA) systems utilizing space-time block coding (STBC) over a multipath fading channel. Specifically, in the first stage, a signal-blocked (SB) interference-blocked (IB) detector is...

  • Block Robust Algorithm for Network Echo Cancellation. Alaeddine, Hamze Haidar; Baghious, El Houssain; Burel, Gilles // International Journal on Communications Antenna & Propagation;Feb2013, Vol. 3 Issue 1, p68 

    This paper is about an efficient implementation of adaptive filtering for echo cancelers. Recently a fast converging algorithm called Robust Proportionate Normalized Least Mean Squares (RPNLMS++) against double-talk has been proposed. This paper presents a realization of an improved version of...

  • Carrierless Amplitude Phase Modulation.  // Network Dictionary;2007, p87 

    A reference entry for "Carrierless Amplitude Phase Modulation" (CAP) is presented. CAP modulation is a viable alternative for the Digital Subscriber (DSL) systems such as the HDSL, ADSL And VDSL. The conventional two-dimensional CAP-16 line code is extended to a three-dimensional system, and is...

  • Phase Modulation Supports DAB In FM Band.  // Microwaves & RF;Dec2003, Vol. 42 Issue 12, p50 

    Discusses research being done on phase modulation. Reference to a study by Gerrit de Boer et al from the University of Hannover published in the September 2003 issue of "IEEE Transactions on Broadcasting," Vol. 49, No. 3; Benefit of phase moduation; Methods used for the research.

  • Methods for diagnostics of an array antenna by the signals reflected from radiator-free space junctions in the presence of mutual coupling of array elements. Manichev, A.; Balagurovskii, V. // Journal of Communications Technology & Electronics;Apr2013, Vol. 58 Issue 4, p307 

    The problem of diagnostics of the elements of a phased array antenna (PAA) with interacting PAA elements with the use of signals reflected from radiator-free space junctions is considered. Methods for design of experiments and processing of the measured data that increase the reliability of PAA...

  • Differential Phase Shift Keying.  // Network Dictionary;2007, p147 

    A definition of the term "Differential Phase Shift Keying" is presented. It refers to a digital modulation format where information is conveyed in phase difference of a carrier signal between consecutive symbols.

  • Offset Quadrature Phase Shift Keying.  // Network Dictionary;2007, p350 

    A definition of the term "offset quadrature phase shift keying" (OQPSK) is presented. Sometimes called staggered QPSK (SQPSK), OQPSK is a type of QPSK modulation that offsets that bit streams on the I and Q channels by a half bit. This reduces amplitude fluctuations and helps improve spectral...

  • Interoperability: Myth vs reality. Blume, Wolfram // EDN;08/01/97, Vol. 42 Issue 16, p193 

    Opinion. Discusses the myth and reality associated with interoperability in the electronic industry. Details on the efforts to address the interoperability problem.

  • Milestone claimed for Internet security protocol.  // American Banker;5/20/1997, Vol. 162 Issue 96, p16 

    Reports on the Internet protocol security IPSec's success in an interoprability test that bodes well for financial business over open networks called TimeStep Corp. Initiative treat for the children; Other participants.


Read the Article

Courtesy of

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics