Abstract
To be considered ultra wideband (UWB) per FCC definition, a signal must satisfy one of the two frequency domain requirements as stated in Chap. 1. One family of signals that satisfy the UWB requirements are impulse radios. There are, however, a number of others. Impulse radios were treated in Chaps. 3 and 4. In this chapter, we introduce other UWB modulation types such as frequency hopping (also known as multiband) and direct sequence approaches.
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Notes
- 1.
- 2.
The OFDM symbol period must be significantly less than coherence time of the channel to avoid ICI.
- 3.
Subcarrier bandwidth must be much larger than the channel Doppler spread.
- 4.
DCM is a four-dimensional modulation scheme.
References
R. Aiello, A. Batra, Ultra Wideband Systems: Technologies and Applications (Elsevier, Amsterdam, 2006)
V.P. Ipatov, Ternary Sequences with Ideal Autocorrelation Properties. Radio Eng. Electron. Phys. 24, pp. 75–79, Oct 1979
T. Hoholdt, J. Justesen, Sieves for Low Autocorrelation Binary Sequences. IEEE Trans. Inf. Theory, 29(4), pp. 597–600, July 1983
J. Balakrishnan, A. Batra, A. Dabak, A multi-band OFDM system for UWB communication, in Proceedings of IEEE Conference on Ultra Wideband Systems and Technologies, pp. 354–358, 2003
Ecma International standard ECMA-368, High Rate UltraWideband PHY and MAC Standard, 2nd ed. http://www.ecma-international.org/publications/standards/Ecma-368.html, Dec 2007
Ecma International standard ECMA-369, MAC-PHY Interface for ECMA-368, 2nd ed. http://www.ecma-international.org/publications/standards/Ecma-369.html, Dec 2007
G. Heidary, WiMedia UWB: Technology of Choice for Wireless USB and Bluetooth, Wiley, London, 2008
DS-UWB Physical Layer Submission to 802.15 Task Group 3a, IEEE 802.15.3a Working Group, P802.15.03/0137r0, 2004
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Emami, S. (2013). UWB Modulation Schemes. In: UWB Communication Systems: Conventional and 60 GHz. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-6753-3_5
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DOI: https://doi.org/10.1007/978-1-4614-6753-3_5
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