Method for applying spread-spectrum techniques to optical communication is presented. The interference suppression capability of spread-spectrum systems is shown to be enhanced by optical transform domain processing.Effects of jammer in DSSS communication system are demonstrated in thispaper.Several possible implementations of this system are suggested, and applications to fiber optics, laser r...

Wireless communication is a key technology for the Internet of Things (IoT). Due to its open nature, physical layer wireless systems high-priority target an adversary whose goal disrupt normal behavior system. In particular, jamming attacks are one most straightforward and effective types attacks: information flow system stopped or severely disturbed. this paper, we propose method improve resil...

With the ever-growing advancements in the field of technology, Digital communication systems are becoming increasingly attractive and flexible for a secure form of data communication. Spread Spectrum overcomes the severe levels of interference that are encountered in the transmission of the digital information and rely upon shift register codes. This paper is in accordance with the design of Sp...

A programmable pipelined digital differential matched filter (PDMF) implemented for a direct sequence spread spectrum receiver is proposed in this paper. To reduce the power consumption, the architecture PDMF is based on the synchronization combined PN code phase acquisition algorithm (Huang et al., 1999). Compared with the conventional PN code phase acquisition algorithm, the theoretical analy...

The issue of coexistence between IEEE 802.11 high speed Direct Sequence Spread Spectrum (DSSS) and Bluetooth radios with both radio types located within a mixed environment is studied. A network topology, propagation model, and user traffic loads are postulated. The reliability of IEEE 802.11 Hi Rate DSSS radios is then estimated under the stated conditions. 1.0 Introduction IEEE 802.11 and Blu...

One of the substantial challenges in marketing efforts is determining optimal markets, specifically in market segmentation. The problem is more controversial in electronic commerce and electronic marketing. Consumer behaviour is influenced by different factors and thus varies in different time periods. These dynamic impacts lead to the uncertain behaviour of consumers and therefore harden the t...

Solution of forward kinematics in Stewart platform using six rotary sensors on joints of three legs A. Mahmoodi, A. Sayadi & Mohammad B. Menhaj a Department of Aerospace Engineering, Center of Excellence for Design and Simulation of Space Systems (DSSS), KNTU University of Technology, Vafadar Ave. Tehranpars., Tehran, Iran b Department of Mechanical Engineering, Azad Islamic University, Karaj B...