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A Multicarrier Multiplexing Method for Very Wide Bandwidth Transmission

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Abstract

The multicarrier orthogonal code division multiplexing (MC-OCDM) introduced here has been designed for very wide bandwidth (VWB) point-to-point and point-to-multipoint transmission. In order to meet VWB transmission requirements, the MC-OCDM design has two components, the basic and the composite. The basic MC-OCDM is a generalized form of the standard orthogonal frequency division multiplexing (OFDM). It has the property of distributing the power of each transmitted symbol into all subcarrier frequencies. Each subcarrier will then carry all transmitted symbols which are distinguished by orthogonal Hadamard sequences. The resulting system is shown to improve the performance of OFDM by introducing frequency and time diversity. As shown, by both analysis and simulation, the basic MC-OCDM combats the effects of narrowband interference (NBI). In particular, the simulation results show that the BER performance of the basic MC-OCDM in the presence of NBI is better than OFDM for both coded and uncoded systems. Furthermore, the composite MC-OCDM is a method of orthogonal frequency division multiplexing (OFDM) basic MC-OCDM channels. This allows us to multiplex more than one basic MC-OCDM channel into a VWB transmission system which can have the performance and spectral efficiency required in fixed wireless transmission environments.

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References

  1. 1.

    ETSI ETS 300 744 : Digital video broadcasting; frame structure, channel coding and modulation for digital terrestrial television (DVB-T). ETSI Tech. Rep. March 1997.

  2. 2.

    IEEE 802.11a-1999 : Wireless LAN Medium Access Control and Physical Layer specifications-High Physical Layer in tha 5GHz Band.

  3. 3.

    Sari H, Karam G, Jeanclaude I: Transmission techniques for digital terrestrial TV broadcasting. IEEE Communications Magazine 1995,33(2):100–109. 10.1109/35.350382

  4. 4.

    Fazel K, Papke L: On the performance of convolutionally-coded CDMA/OFDM for mobile communications. Proceedings of 4th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC '93), September 1993, Yokohama, Japan 109–113.

  5. 5.

    Dasilva VM, Sousa ES: Multicarrier orthogonal CDMA for quasi-synchronous communication systems. IEEE Journal on Selected Areas in Communications 1994,12(5):842–852. 10.1109/49.298058

  6. 6.

    Gui X, Ng TS: Performance of asynchronous orthogonal multicarrier CDMA system in frequency selective fading channel. IEEE Transactions on Communications 1999,47(7):1084–1091. 10.1109/26.774858

  7. 7.

    Kondo S, Milstein L: Performance of multicarrier DS CDMA systems. IEEE Transactions on Communications 1996,44(2):238–246. 10.1109/26.486616

  8. 8.

    Wiegandt DA, Wu Z, Nassar CR: High-throughput, high-performance OFDM via pseudo-orthogonal carrier interferometry speading codes. IEEE Transactions on Communications 2003,51(7):1123–1134. 10.1109/TCOMM.2003.814196

  9. 9.

    Cai X, Zhou S, Giannakis GB: Group-orthogonal multicarrier CDMA. IEEE Transactions on Communications 2004,52(1):90–99. 10.1109/TCOMM.2003.822174

  10. 10.

    Gerakoulis D: Interference suppressing OFDM method for wireless communications. United States Patent no. 6,882,619, Granted April, 2005

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Correspondence to Diakoumis Gerakoulis.

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Gerakoulis, D., Efthymoglou, G. A Multicarrier Multiplexing Method for Very Wide Bandwidth Transmission. J Wireless Com Network 2006, 064253 (2006) doi:10.1155/WCN/2006/64253

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Keywords

  • Time Diversity
  • Orthogonal Frequency Division Multiplex
  • System Application
  • Transmission System
  • Spectral Efficiency