Title :
A hybrid OCDMA scheme with variable rate and QoS
Author :
Tao, Pu ; Quan, Li Yu ; Ming, Xu ; Wen, Yang Shu
Author_Institution :
Inst. of Comm Eng., PLA Univ. of Scie & Tech, Nanjing, China
Abstract :
We proposed a hybrid OCDMA system, in which users are divided into 3 categories: frequency-hop (FH), time-spread (TS) and FH-TS codes´ users. Their address codes´ mathematical expression and codes´ cardinals are given separately. Their multi-access interferences as well as BER performances are also discussed. This system is very fit for the case that a small part of services are with high bit rate or high QoS, while great amount of services are common one.
Keywords :
code division multiple access; error statistics; frequency hop communication; interference (signal); optical fibre communication; quality of service; variable rate codes; BER; QoS; codes cardinals; codes mathematical expression; frequency-hop; frequency-hop-time-spread codes users; hybrid OCDMA scheme; multiaccess interferences; time-spread; variable rate; Autocorrelation; Bit error rate; Codecs; Frequency domain analysis; High speed optical techniques; Interference; Optical fiber communication; Optical fiber networks; Protocols; Wireless communication;
Conference_Titel :
Communication Technology Proceedings, 2003. ICCT 2003. International Conference on
Print_ISBN :
7-5635-0686-1
DOI :
10.1109/ICCT.2003.1209145
