Title :
Asynchronous W-CDMA uplink performance in double spread cascaded RoF systems
Author :
Reddy, Y. Bhanupakash ; Alphones, A.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
In this work, WCDMA based RoF uplink system evaluation for asynchronous case has been investigated. As the 3rd generation wireless communication technology uses WCDMA standards to support the broadband services, RoF technology will be an appropriate candidate. This study proposes a novel double spreading mechanism, both in wireless and optical domains for the cascaded RoF systems. The simulation studies on BER performance for different number of users using OVSF codes and M-sequences in wireless domain and Walsh-Hadamard codes for OCDMA in optical domain have been carried out and found to be almost same. Hence in view of less system complexity and cost, the proposed double spreading technique would be an ideal solution for cascaded RoF systems.
Keywords :
3G mobile communication; Hadamard codes; broadband networks; code division multiple access; error statistics; m-sequences; microcellular radio; optical fibre networks; optical links; spread spectrum communication; BER performance; OCDMA; OVSF code; Walsh-Hadamard code; asynchronous W-CDMA uplink performance; broadband service; double spread cascaded RoF system; fiber optic backboned micro cellular system; m-sequence; optical domain; system complexity; third generation wireless communication technology; Bandwidth; Base stations; Costs; Multiaccess communication; Optical fiber cables; Optical fiber communication; Optical fiber networks; Optical modulation; Optical signal processing; Signal processing;
Conference_Titel :
Information, Communications and Signal Processing, 2003 and Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint Conference of the Fourth International Conference on
Print_ISBN :
0-7803-8185-8
DOI :
10.1109/ICICS.2003.1292666
