A modified linear decorrelating detector for asynchronous CDMA

M. Peng; M. F. Sasabo; Y. J. Guo; S. K. Barton

A modified linear decorrelating detector for asynchronous CDMA

M. Peng, M. F. Sasabo, Y. J. Guo, S. K. Barton

Research output: Contribution to journal › Article › peer-review

Abstract

Although the linear decorrelating detector (LDD) is theoretically a simple scheme for the detection of asynchronous CDMA, its practical implementation is still too complicated and it may have long detection delay. One-shot LDD has a simpler architecture and almost no detection delay, but it could lead to significant noise enhancement, and hence degraded near-far resistance (NFR) than the standard LDD. In this paper, a modified LDD (MLDD) is proposed. With controllable complexity and detection delay, the MLDD has smaller noise enhancement than the one-shot LDD and its NFR can approach that of the standard LDD.

Original language	English
Journal	IEE Colloquium (Digest)
Issue number	129
Publication status	Published - 1997
Externally published	Yes

Cite this

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AU - Sasabo, M. F.

AU - Guo, Y. J.

AU - Barton, S. K.

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N2 - Although the linear decorrelating detector (LDD) is theoretically a simple scheme for the detection of asynchronous CDMA, its practical implementation is still too complicated and it may have long detection delay. One-shot LDD has a simpler architecture and almost no detection delay, but it could lead to significant noise enhancement, and hence degraded near-far resistance (NFR) than the standard LDD. In this paper, a modified LDD (MLDD) is proposed. With controllable complexity and detection delay, the MLDD has smaller noise enhancement than the one-shot LDD and its NFR can approach that of the standard LDD.

AB - Although the linear decorrelating detector (LDD) is theoretically a simple scheme for the detection of asynchronous CDMA, its practical implementation is still too complicated and it may have long detection delay. One-shot LDD has a simpler architecture and almost no detection delay, but it could lead to significant noise enhancement, and hence degraded near-far resistance (NFR) than the standard LDD. In this paper, a modified LDD (MLDD) is proposed. With controllable complexity and detection delay, the MLDD has smaller noise enhancement than the one-shot LDD and its NFR can approach that of the standard LDD.

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JO - IEE Colloquium (Digest)

JF - IEE Colloquium (Digest)

SN - 0963-3308

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ER -

A modified linear decorrelating detector for asynchronous CDMA

Abstract

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