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Comparison of CDMA and TDMA in AWGN channels

Abtahi, M ; Sharif University of Technology | 2000

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  1. Type of Document: Article
  2. Publisher: Sharif University of Technology , 2000
  3. Abstract:
  4. In this paper, two multiple access methods in time and code domains are compared for Additive White Gaussian Noise (AWGN) channels. Time Division Multiple Access (TDMA) has been used for many years and its features are well-known. Characteristics of Code Division Multiple Access (CDMA) and its advantages over TDMA are studied in this paper. The burstiness nature of voice traffic and unequal bit transmission time in TDMA and CDMA are used to compare the performance of the two techniques. Delay, throughput and packet loss, as performance parameters, are evaluated and computed for data and voice traffics. Capability of CDMA in accommodating sources with different bit rates is also considered. The results represent a noticeable improvement in the performance of CDMA over TDMA when features of the spread spectrum techniques are taken into consideration
  5. Keywords:
  7. Source: Scientia Iranica ; Volume 7, Issue 3-4 , 2000 , Pages 197-204 ; 10263098 (ISSN)
  8. URL: http://scientiairanica.sharif.edu/article_2792.html