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A high-speed transmission method for wireless personal communications

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Abstract

The next-generation wireless personal communications systems are expected to support a wide range of high-quality services that require high data rates. Communicating at high transmission rates over the harsh wireless environment, however, creates many difficult and challenging problems. In this paper, we describe a technique for the high-speed transmission of data in wireless personal communications which we denote as multicode modulation. In this technique, the high-rate bit transmitted data is serial to parallel converted into low-rate bit streams in a similar fashion to multicarrier or multitone modulation. However, in contrast to the multicarrier method, here we propose to modulate each low-rate bit stream using direct-sequence spread-spectrum on a single carrier. It is demonstrated that by selecting the processing gain properly the total required bandwidth will be of the same order as the original high-rate data stream; thereby, gaining the inherent benefit of multipath rejection without expanding the bandwidth of the original high-rate stream. To demonstrate the potential and merits of the proposed method as an alternative technique for high-speed transmission for wireless personal communications, various simulation results over a multipath Rayleigh fading link are presented.

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Authors and Affiliations

  1. Electrical & Electronic Engineering Department, The Hong Kong University of Science & Technology, Clear Water Bay, Hong Kong

    K. Ben Letaief, J. C. -I. Chuang & R. D. Murch

Authors
  1. K. Ben Letaief
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  2. J. C. -I. Chuang
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  3. R. D. Murch
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Additional information

Supported in part by the Hong Kong Research Grant Council, Project No. HKUST562/94E and the Hong Kong Telecom Institute of Information Technology, Project No. HKTIIT94/95.EG03.

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Letaief, K.B., Chuang, J.C.I. & Murch, R.D. A high-speed transmission method for wireless personal communications. Wireless Personal Communications 3, 299–317 (1996). https://doi.org/10.1007/BF00354877

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