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A statistical mechanics analysis of ncoded CDMA with regular LDPC codes
Published on Feb 25, 20073377 Views
Ne obstaja
Chapter list
A statistical mechanics analysis of coded CDMA with regular LDPC codes00:01
Outline00:25
Overview: Mobile communication system00:58
Multiple access (1)02:04
Multiple access (2)02:22
CDMA: Principle02:47
CDMA: Principle03:46
CDMA: Principle04:04
CDMA channel (K users)05:44
CDMA detection problem06:24
Remark 1: Relationship with Perceptron06:43
Analysis: Bayesian framework07:34
Bayes decision theory08:24
Statistical-mechanical analysis10:38
Replica analysis11:43
Binary uniform prior, AWGN15:58
Binary uniform prior, AWGN16:16
Remark 2: Relationship with Hop eld models17:07
Error correcting codes18:03
Regular LDPC Codes19:00
Gallager's Code19:52
Motivation: LDPC-coded CDMA23:56
LDPC-coded CDMA28:32
LDPC-coded CDMA28:58
Free energy31:01
LDPC-coded CDMA - Hamiltonian34:05
LDPC-coded CDMA34:08
LDPC-coded CDMA34:43
LDPC-coded CDMA35:41
LDPC-coded CDMA37:53
LDPC-coded CDMA46:52
Individual optimum decoding48:05
Detection and decoding48:45
Individual optimum decoding I49:32
Individual optimum decoding II51:30