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This paper analyses a multiplexing technique based on duty cycle division, known as duty cycle division multiplexing (DCDM). This new technique is studied for various perspectives of theoretical and simulation analysis on the basis of signal energy and symbol error rate (SER) taken as its performance measure. A wireless channel based on free space propagation model is considered for simulation studies...
With increased demand of high data rates with mobility, broadband wireless services have seen tremendous growth in recent past years. The mobile Worldwide Interoperability for Microwave Access (WiMAX) is based on IEEE 802.16 standard and is used for wireless Metropolitan Area Network (MAN). The IEEE 802.16 standard supports high data rate and high capacity in mobile Broadband Wireless Access (BWA)...
The main aim of this work is to investigate the performance of Single Carrier Frequency Division Multiple Access (SC-FDMA) in mobile communication system. Nowadays there is increase in demand for high speed data transfer in mobile communication. Different multiple access schemes like Orthogonal Frequency Division Multiplexing (OFDM) and SC-FDM are the two important schemes of Long Term Evolution (LTE)...
Performance optimization of communication networks with quality of services (QOS) considerations for all active users is highly desirable. The growth of wireless multimedia applications requires high-speed and reliable communication over wireless channels of system. Throughput and fairness are important conflicting performance parameter in resource allocation for non-cooperative and cooperative OFDMA...
Recently, battery powered RFID tags have attracted attention as the latest technology for commodity management. Every day, we come across many applications where passive and active RFID tags are used. But active tags not really portable due to battery which demands frequent charging and replacement. As battery technology is not advancing by the same rate, thus we need to think concretely for an alternate...
Orthogonal Frequency Division Multiplexing (OFDM) has emerged as a potential application for the delivery of broad band wireless access. Both DS and FH systems reduce the average power spectral density of a signal and affects by broadband noise. Narrowband interference impacts severely on an FH signal than a DS signal on the same channel. The combination of OFDM with Direct Sequence Spread Spectrum...
B-ISDN is expected to support diverse applications ranging from lowest to highest bit rate communications. In this mode, information is transferred in a connection oriented fashion among communicating entities using fixed size packets know as ATM cell. The Batcher-Banyan combinational switches are one of high speed space division switches. But it finds difficulties in routing two cells with same destination...
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