Directional diversity of smart antenna in LAS CDMA systems

Chee Kyun Ng, Nor Kamariah Noordin, Sabira Khatun, Borhanuddin Mohd Ali, Sudhanshu Shekhar Jamuar, Mahamod Ismail

Research output: Contribution to journalArticle

Abstract

The performance of code division multiple access (CDMA) systems can be affected by small scale fading such as Rayleigh fading channel. In this paper, the application of smart antenna and Large Area Synchronous CDMA (LAS CDMA) systems, which introduce directional diversity channel, is presented. A novel interference cancellation scheme through dynamic space code (DSC) algorithm is briefly described. The directional diversity can be realized from the directional gain of smart antenna system. It can be found that when the number of elements in smart antenna is increase the directional gain of antenna system is much higher than single antenna. The system performance analysis in term of error probability is compared between traditional and LAS CDMA systems in both single and smart antenna systems. From the performance analysis it is found that CDMA system is more susceptible to multipath fading channel than interferences from existing users.

Original languageEnglish
Pages (from-to)305-316
Number of pages12
JournalWireless Personal Communications
Volume46
Issue number3
DOIs
Publication statusPublished - Aug 2008

Fingerprint

Smart antennas
Code division multiple access
Fading channels
Antennas
Fading (radio)
Multipath fading
Rayleigh fading

Keywords

  • Diversity
  • LAS CDMA
  • Smart antenna

ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Directional diversity of smart antenna in LAS CDMA systems. / Ng, Chee Kyun; Noordin, Nor Kamariah; Khatun, Sabira; Ali, Borhanuddin Mohd; Jamuar, Sudhanshu Shekhar; Ismail, Mahamod.

In: Wireless Personal Communications, Vol. 46, No. 3, 08.2008, p. 305-316.

Research output: Contribution to journalArticle

Ng, Chee Kyun ; Noordin, Nor Kamariah ; Khatun, Sabira ; Ali, Borhanuddin Mohd ; Jamuar, Sudhanshu Shekhar ; Ismail, Mahamod. / Directional diversity of smart antenna in LAS CDMA systems. In: Wireless Personal Communications. 2008 ; Vol. 46, No. 3. pp. 305-316.
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