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ETTC'2003 - SEE

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channel delay of kth user, ck ( t − τ k ) is the PN sequence of kth user, n(t) is an AGWN<br />

process with two-sided power spectral density No/2. Without loss generality , let<br />

0 ≤ ≤τ<br />

≤ ⋅⋅<br />

⋅ ≤τ<br />

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