Direct-detection optical synchronous CDMA systems with interference canceller using group information codes

Hiroshi Sawagashira, Katsuhiro Kamakura, Tomoaki Ohtsuki, Iwao Sasase

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

We propose an interference cancellation technique using reference signal for optical synchronous code-division multiple-access (CDMA) systems. In the proposed system, we use the signature code sequences composed of the group information codes and the modified prime code sequences. The group information codes are added in the forefront of the signature code sequences to estimate the amount of the multiple access interference (MAI). The proposed cancellation technique can be realized with simpler structure than the conventional canceller using the time division reference signal, because it can reduce the number of optical correlators from P to two, where P is the prime number. Considering the effects of the MAI, avalanche photodiode (APD) noise, and thermal noise, we analyze the performance of the proposed system. We show that the proposed canceller achieves better bit error probability than the conventional canceller.

Original languageEnglish
Title of host publicationConference Record / IEEE Global Telecommunications Conference
PublisherIEEE
Pages1216-1220
Number of pages5
Volume2
Publication statusPublished - 2000

Fingerprint

Multiple access interference
Code division multiple access
Avalanche photodiodes
Thermal noise
Correlators
avalanche
code
detection
Error probability

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Global and Planetary Change

Cite this

Sawagashira, H., Kamakura, K., Ohtsuki, T., & Sasase, I. (2000). Direct-detection optical synchronous CDMA systems with interference canceller using group information codes. In Conference Record / IEEE Global Telecommunications Conference (Vol. 2, pp. 1216-1220). IEEE.

Direct-detection optical synchronous CDMA systems with interference canceller using group information codes. / Sawagashira, Hiroshi; Kamakura, Katsuhiro; Ohtsuki, Tomoaki; Sasase, Iwao.

Conference Record / IEEE Global Telecommunications Conference. Vol. 2 IEEE, 2000. p. 1216-1220.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sawagashira, H, Kamakura, K, Ohtsuki, T & Sasase, I 2000, Direct-detection optical synchronous CDMA systems with interference canceller using group information codes. in Conference Record / IEEE Global Telecommunications Conference. vol. 2, IEEE, pp. 1216-1220.
Sawagashira H, Kamakura K, Ohtsuki T, Sasase I. Direct-detection optical synchronous CDMA systems with interference canceller using group information codes. In Conference Record / IEEE Global Telecommunications Conference. Vol. 2. IEEE. 2000. p. 1216-1220
Sawagashira, Hiroshi ; Kamakura, Katsuhiro ; Ohtsuki, Tomoaki ; Sasase, Iwao. / Direct-detection optical synchronous CDMA systems with interference canceller using group information codes. Conference Record / IEEE Global Telecommunications Conference. Vol. 2 IEEE, 2000. pp. 1216-1220
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