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Performance Analysis Of CDMA System Using Power Control Algorithm With AWGN Channel

G. Brindha*

Assistant Professor, Lord Jegannath College of Engineering and Technology

Periodicity:February - April'2012
DOI : https://doi.org/10.26634/jcs.1.2.1772

Abstract

Continuation of an active call is one of the most important quality measures in cellular communication systems. Handoff process in the cellular system enables to provide such facility by transferring an active call from one cell to another cell.Signals transmitted over a multipath propagation channel can exhibits inter path interference and fading. To overcome the multipath effect, Rake receiver is used in CDMA technology. An important characteristic of a multipath channel is the time delay spread it causes to the received signal. This delay spread equals the time delay between the arrival of the first received signal component (LOS or multipath) and the last received signal component associated with a single transmitted pulse. Another characteristic of the multipath channel is its time-varying nature.Rake receiver is realized between the main path component and the local recovery carrier. In this paper the downlink performance parameters are estimated for a CDMA mobile system at the vertex of multiple adjacent cells. At the base station the received signal is coherently dispread and demodulated using a rake receiver. The effects of power control, error correction and rake receiver were also investigated and simulated based on the assumption that the received signals undergo Rayleigh fading.

Keywords

CDMA, Power Control,Handover, Rake Receiver, Error Correction, Probability Density Function.

How to Cite this Article?

G. Brindha (2012). Performance Analysis Of Cdma System Using Power Control Algorithm With Awgn Channel. i-manager’s Journal on Communication Engineering and Systems, 1(2), 17-22. https://doi.org/10.26634/jcs.1.2.1772

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