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subdivide
each individual bit into m signals (chips) and
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transmit
those using full bandwidth
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each
station is assigned a unique m-bit code or chip
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sequence,
which is combined with value of data bit to
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determine
sending sequence (for a bit value of 1, send
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chip
sequence, for a bit value of 0 send ones
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complement)
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receiving
station reconstructs data bit from m samples,
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tolerates
certain amount of interference
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effect
is that b bits/second of information are spread out
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over
mb chips/second, form of spread spectrum
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communication,
operational requirement for ISM bands
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