Accurate BER Analysis of Asynchronous DS-CDMA Systems in Ricean Channels
Liu, X. and Hanzo, L (2006) Accurate BER Analysis of Asynchronous DS-CDMA Systems in Ricean Channels. In, IEEE VTC'06 (Fall), Montreal, Canada, 25 - 28 Sep 2006. , 5 pages.
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Description/Abstract
The accurate Bit Error Rate (BER) calculation of an asynchronous Ricean-faded DS-CDMA system using random spreading sequences and BPSK modulation is studied in this paper. A new closed-form expression is derived for the conditional characteristic function of the cochannel interference. Furthermore, a new BER expression involving only a single integration is derived invoking the characteristic function approach and hypergeometric functions of two variables. The accuracy of our BER expression is confirmed by our simulation results for various spreading sequence lengths and various Ricean K-factors. By contrast, the Standard Gaussian Approximation (SGA) overestimates the BER of Rayleigh fading channels, when there is no Line-of-Sight (LOS) component and it under-estimates the BER, when the LOS component becomes stronger.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Additional Information: | Event Dates: 25-28 September 2006 |
| Divisions: | Faculty of Physical and Applied Science > Electronics and Computer Science > Comms, Signal Processing & Control |
| Item ID: | 263043 |
| Date Deposited: | 03 Oct 2006 |
| Last Modified: | 01 Mar 2012 11:20 |
| Contributors: | Liu, X. (Author) Hanzo, L (Author) |
| Date: | 2006 |
| Additional Information: | Event Dates: 25-28 September 2006 |
| Status: | Published |
| Further Information: | Google Scholar |
| ISI Citation Count: | 0 |
| URI: | http://eprints.soton.ac.uk/id/eprint/263043 |
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