The tremendous development in wireless technologies and multimedia applications persuaded upsurge in spectrum utilization in the past. One of the adequate clarifications to overwhelm this limitation is by using Cognitive Radios (CR). These networks are likely to boost spectrum consumption professionally by permitting Secondary Users (SUs) to take advantage of the use of the approved spectrum of primary users (PUs). CR is a kind of a sensible radio that can sense the extraneous surroundings, analyze the past and build perspicacious conclusions to switch its transmission factors in step with the current state of the atmosphere. An Ad-hoc
Network engaging Cognitive Radios (CR) can often be termed as Cognitive Radio Adhoc Network (CRAHN). Routing in CRAHNis not an easy mission due to spectrum availability, power, link stability, etc. Among all the parameters, the one among the best parameter for route selection is throughput. Since several applications need a high value of throughput like Audio & Video Broadcasting, Interactive audio & Video Streaming, etc. and some require the low value of throughput like E-mail, Telnet, etc. This paper design a routing strategy based on finding an optimal throughput path using fuzzy logic. To show the efficiency of a designed scheme it is compared with the shortest path routing mechanism. Our result shows that the proposed method is efficient than Shortest Spectrum.
This paper elucidates the research and implementation of various factors affecting video streaming over Bluetooth RFCOMM protocol. The advent of ubiquitous wireless technology makes it feasible to transmit real-time video in mobile and pervasive environments over Bluetooth. We have studied the performance of the Bluetooth RFCOMM protocol to carry the streaming video in real experimental test scenarios. Comparison is made on the basis of various dependencies such as distance, hardware/software, WLAN interference affecting the data rates of transmission and its impact is investigated. An optimised solution is proposed to mitigate the anomalies due to latency and the factors studied.
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