Title :
Performance comparison of 2n extended prime codes (λc=1) and 2n prime codes (λc =2) in fiber-optic CDMA systems
Author :
Zhang, Jian-Guo ; Kwong, Wing C. ; Sharma, A.B.
Author_Institution :
Telecommun. Program, Asian Inst. of Technol., Bangkok, Thailand
Abstract :
We construct two special families of 2n codes, called 2 n prime codes and 2n extended prime codes, for all-optical code-division multiple access (AO-CDMA) applications. Such 2 n codes are obtained by “modifying” and “extending” prime codes, respectively. The cross-correlation constraint λc of 2n extended prime codes is equal to one, while λc=2 for 2n prime codes. Moreover, the bit error rates (BERs) of AO-CDMA systems using the constructed 2n codes are analyzed. It is shown that the 2n extended prime codes can support a larger number of active users than the 2n prime codes for a given BER
Keywords :
code division multiple access; codes; correlation methods; error statistics; optical fibre communication; BER; all-optical code-division multiple access; bit error rates; cross-correlation constraint; extended prime codes; fiber-optic CDMA systems; performance comparison; prime codes; Bit error rate; Costs; Decoding; High speed optical techniques; Multiaccess communication; Optical fiber networks; Optical fibers; Optical losses; Optical signal processing; System performance;
Conference_Titel :
Communication Technology Proceedings, 1998. ICCT '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
7-80090-827-5
DOI :
10.1109/ICCT.1998.741000
