High-speed DQPSK chirp spread spectrum system for indoor wireless applications

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High-speed DQPSK chirp spread spectrum system for indoor wireless applications

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A chirp spread spectrum communication link for high-speed indoor wireless systems using a broadband SAW chirp filter is proposed. This system combines the multipath resolving ability of spread spectrum with the diversity of a RAKE-type receiver. Computer simulations and experimental results show nearly ideal performance in multipath fading conditions.

Inspec keywords: spread spectrum communication; chirp modulation; differential phase shift keying; surface acoustic wave filters; digital radio; indoor radio; fading; multipath channels; error statistics; quadrature phase shift keying

Other keywords: indoor wireless applications; broadband SAW chirp filter; chirp spread spectrum system; RAKE-type receiver; 1800 MHz; multipath fading conditions; UHF; high-speed DQPSK system

Subjects: Passive filters and other passive networks; Acoustic wave devices; Radio links and equipment; Modulation and coding methods

References

    1. 1)
      • G.F. Gott , A.J. Karia . Differential phase-shift keying applied to chirp data signals. Proc. IEE , 9 , 923 - 928
    2. 2)
      • C. Campbell . (1989) Surface acoustic wave devices and their signal processing applications.
    3. 3)
      • J.G. Proakis . (1995) Digital communications.
    4. 4)
      • Tholl, D.: `Characterization of the UHF indoor radio propogation channel', 1995, MSc, University of Calgary.
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