Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1996-03-01
1998-05-12
Chin, Wellington
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
370336, 370337, 370320, 370342, H04J 1304, H04J 316
Patent
active
057517045
ABSTRACT:
A technique for packet-switching suitable for interference-limited wireless communication systems is provided. Long bursty packets of data are broken into shorter units or packet-slots. This advantageously provides for averaging and minimizing interference in time--one of the requirements for achieving high system capacity in interference-limited systems. Transmit-start times and durations of packet slots are controlled by packet-slot distribution patterns. The patterns are representable by unipolar binary codes/sequences whose properties are based on number-theoretic principles. The technique minimizes the time variance of composite interference due to simultaneous transmissions of numerous signals over the same frequency channel. By minimizing the variance of overall interference, this technique satisfies the demand of multi-media traffic and also increases system capacity in a fading multipath environment.
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Kostic Zoran
Pavlovic Gordana
Chin Wellington
Lucent Technologies - Inc.
Nguyen Steven
Williamson Samuel R.
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