NDLI: A novel fading cancellation scheme for trellis coded systems based on a multichannel approach

Content Provider	IEEE Xplore Digital Library
Author	Makrakis, D.
Copyright Year	1989
Description	Author affiliation: Dept. of Electr. Eng., Ottawa Univ., Ont., Canada (Makrakis, D.)
Abstract	The system encodes the information between signals suffering from similar fading signatures. Through proper processing, the fading signatures cancel each other from the final output. With the exception of the fading-cancellation capabilities, the system is also able to eliminate the Doppler phase shifts associated with the moving nature of the communication units. The scheme has been evaluated for a trellis coded four-phase-shift-keying (PSK) system. The results demonstrated improvements on the order of 9.0 dB at a bit error rate (BER) of 10/sup -3/ and reduction of error floors greater than three orders of magnitude. These improvements have been achieved without the use of interleaving, necessary for the operation of trellis-coded schemes under fading conditions. By eliminating the interleaving, extra complexity, as well as long time delays with negative effect on the quality of the communication link, is avoided.<>
Starting Page	275
Ending Page	280
File Size	478624
Page Count	6
File Format	PDF
DOI	10.1109/ICC.1989.49706
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1989-06-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading Interleaved codes Wideband Signal processing Delay effects Mobile communication Degradation Land mobile radio Narrowband Channel estimation
Content Type	Text
Resource Type	Article

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