WiMax(World Wide Interoperability for Microwave Access) provides high data rate over long distance wireless communication .Generally Wimax adapted OFDM (Orthogonal code division multiple access) architecture as transmission medium in IEEE 802.16 standard. Our aim is to analysis MC-CDMA (Multicarrier code division multiple access) based WiMax design and verify the performance under different mod...

Direct sequence (DS) and Multi-carrier (MC) code division multiple access (CDMA) are competing schemes for wireless multiple access systems. They have been studied and compared by many researchers. Time and frequency domains have long been used to represent linear systems in dual forms. In this paper it is shown, using time-frequency duality, that DS and MC can be considered dual CDMA systems o...

This paper focuses on molecular communication (MC) systems where the signaling molecules may participate in a reversible bimolecular reaction in the channel. The motivation for studying these MC systems is that they can realize the concept of constructive and destructive signal superposition, which leads to favorable properties such as inter-symbol interference (ISI) reduction and avoiding envi...

This work is a comparative study of the dosimetry calculated by Plaque Simulator, a treatment planning system for eye plaque brachytherapy, to the dosimetry calculated using Monte Carlo simulation for an Eye Physics model EP917 eye plaque. Monte Carlo (MC) simulation using MCNPX 2.7 was used to calculate the central axis dose in water for an EP917 eye plaque fully loaded with 17 IsoAid Advantag...

Chronolog(MC) is an extension of logic programming based on a clocked temporal logic (CT L), a linear-time temporal logic with multiple granularity of time. A Chronolog(MC) program consists of a clock deenition, a clock assignment and a program body, and each predicate symbol appearing in the program body is associated with a local clock through the clock deenition and assignment. This paper in...

In this paper the performance of a partial combining equalizer for Multi-Carrier Code Division Multiple Access (MC-CDMA) systems is analytically and numerically evaluated. In the part of channel identification, authors propose a blind algorithm based on Higher Order Cumulants (HOC) for identifying the parameters representing the indoor scenario of Broadband Radio Access Networks (BRAN A) channe...

In this paper a simple multiuser Multicarrier system is proposed for multiuser communication, user separation and detection using Interleave Division Multiple Access (IDMA). The performance of IDMA is analyzed in Gaussian and Qausi Static channels. In multicarrier Interleave Division Multiple Access (MC-IDMA) users are separated and identified by interleaving instead of codes as in Code Divisio...

Orthogonal Frequency Division Multiplexing (OFDM) and Code Division Multiple Access (CDMA) are combined to benefit Multi-carrier (MC) Code Division Multiple Access (MC-CDMA) systems. High data rate wireless systems opt for these systems. A large amount of challenges still exist due to the random nature of wireless channels. In this paper, using the basic principles of MCCDMA technique, we emplo...

The Future Wireless Communication requires 100 Mbits/s Data rate, streaming audio/video, asymmetric access/multiple access, Adaptive modulation and coding, dynamic packet arrangement, smart antenna adaptation andIPv6 facility to enhance error free communication. Various digital modulation techniques have been taken for simulation and bit error rate is calculated in both MC-CDMA System and OFDMA...

introduction: gafchromic ebt films are one of the self-developing and modern films commercially available for dosimetric verification of treatment planning systems (tpss). their high spatial resolution, low energy dependence and near-tissue equivalence make them suitable for verification of dose distributions in radiation therapy. this study was designed to evaluate the dosimetric parameters of...