m**t
发帖数: 1292 | 1 in CDMA system, there is less
problem for multipath due to the high chip rate and low correlaation
between successive chips. Equalization is not required in the case that
multipath components are delayed more than a chip duration...
Rake receiver provides diversity using the multipath components, the
result seems can have the effect to reduce the multipath interference too, maybe
use Rake receiver in a different way? like a pilot aided rake demodulation or sth?
i am a bit confused on this, c | p**y
发帖数: 10 | 2 Equalization IS a big deal in CDMA systems because
CDMA signal is inheritantly wideband and have to
deal with multipath problem.
For gaochao's problem, it depends on your problem.
If you are working on some practical system like
IS-95 system, in which long-code is used, no
equalization, rake receiver is used to perform a
maximum ratio combining to combat multipath.
In academia/research CDMA literature, people did
lots of things about short-code CDMA systems. In
this case, a lot of thing become m |
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