BER Performance Analysis of Frequency-Hopping and Direct-Sequencing Spread Spectrum for Cognitive Radio Networks
Cognitive radio is an encouraging technology for future wireless communication networks. Due to the rapid increase in wireless services, the RF spectrum is going through a scarcity problem. This has…
Study and Simulation of DS-CDMA over Communication Channels
Performance of synchronous DS-CDMA systems over multipath fading channel and AWGN Channel is evaluated. The synchronous DS-CDMA system is well known for eliminating the effects of multiple access…
An improved sliding-backstepping control law for large flexible satellite attitude maneuver
- Engineering2010 3rd International Symposium on Systems and Control in Aeronautics and Astronautics
A so called sliding-backstepping controller for attitude maneuver in some large flexible satellite is put forward. Further, combined with theory of Extended State Observer (ESO), the controller has…
Performance evaluation and mathematical analysis of direct sequence and frequency hopping spread spectrum systems under wideband interference
- BusinessInternational Journal of Advances in Intelligent Informatics
This research points out that FHSS system has a better performance compared to DSSS system indicated by smaller BER, and proves that increasing Spreading Frequency on certain conditions will reduce the BER.
Secured Image Transmission Using Wavelets for Spread Spectrum Communication in a Remote Surveillance System
- Computer Science2010 Third International Conference on Advances in Human-Oriented and Personalized Mechanisms, Technologies and Services
Improvements in the methods for transmission of collected data and images in remote unattended sites to the remote monitoring site through wireless communication are discussed.
A Comparison of Frequency Hopping and Direct Sequence Spread Spectrum Modulation for IEEE 802.11 Applications at 2.4 GHz
- Computer Science
An approach to determining the performance tradeoffs so that a network engineer can make the decision on the maximum data flow per acre or the maximum number of networks per acre is analyzed.