Title :
Multi-rate system performance comparison with the role of anti-interference and encrypted
Author :
Nan, Liu ; Peng, Wang
Author_Institution :
Dept. of Electron. Inf. Eng., Beijing Inf. Sci. & Technol. Univ., Beijing, China
Abstract :
In this paper, DS / CDMA (code division DS) system with anti-interference and the role of data encryption, multi-rate signal transmission of several programs to Rayleigh fading channel transmission, for example, narrowband and wideband CDMA based channel Rayleigh number of different paths, indicating a multi-rate signal system, different programs have different results, by software simulation shows that, OVFS scheme in Rayleigh fading channels under its multi-channel processing gain and the number of fading paths on encryption performance of multi-rate systems have a major impact, broadband system encryption performance is better than narrowband systems. Multi-modulation is also a feasible option, but it handles the user´s high-speed data encryption performance is significantly worse than other programs.
Keywords :
Rayleigh channels; code division multiple access; cryptography; radiofrequency interference; spread spectrum communication; DS/CDMA; Rayleigh fading channel transmission; anti-interference; broadband system encryption; high-speed data encryption; multichannel processing gain; multimodulation; multirate signal transmission; narrowband CDMA; wideband CDMA; Cryptography; Encoding; Multiaccess communication; Personal digital assistants; Reliability; Synchronization; Rayleigh Road; encryption; multi-rate;
Conference_Titel :
Electronic Measurement & Instruments (ICEMI), 2011 10th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8158-3
DOI :
10.1109/ICEMI.2011.6037805
