Welcome to International Journal of Emerging Technologies in Engineering Research (IJETER)
Volume 2, Issue 1, August (2015)
| S.No | Tile & Authors | Full Text |
|---|---|---|
| 1 | Transmitter Detection Techniques for Spectrum Sensing in Cognitive Radio System Kanwaljeet Singh, Avtar Singh Buttar Abstract – The revolution in radio technology causes a lack of radio spectrum. Radio spectrum is a limited is a limited source which is becoming denser day by day. Some of the radio frequency bands bear heavy traffic and other bands are rarely used. Cognitive Radio is a solution for spectrum underutilization problem, and the first stage of cognitive radio network is spectrum sensing. Detecting a vacant band for secondary user transmission is not an easy task. Using spectrum bands by secondary users can only be done efficiently if the spectrum sensing is fast and robust enough to perform sensing in a very short time period. In this paper, we discuss and compare the three major spectrum sensing techniques viz. Energy detection, Cyclostationary feature detection and Matched filter detection. |
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| 2 | Resource Provisioning of Multi-tier Web Applications in Cloud Computing Tejinderjit Singh, Parminder Singh Abstract – Web applications these days are mostly multi-tier for the sake of software reusability and flexibility. However it is very difficult to estimate the behavior of workloads in these tiers due to the fact that resource demand at each tier is distinct. So it becomes very confronting to allocate resources at each tier. In order to fulfil SLA (Service Level Agreement) requirements it becomes necessary to provision resources at each tier separately. Recently various approaches on control theory and dynamic approaches have been proposed for the provisioning of resources in cloud. In this paper we identify those challenges and conduct a review on those control theory and dynamic approaches for allocation of resources in multi-tier applications. On the basis of advantages and disadvantages we develop a blueprint for research directions to enhance the effectiveness of resource provisioning in multi-tier applications. |
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| 3 | Design, Development and Characterisation of Microstrip Patch Antenna using Optimisation Schemes: A Perspective Vishal Puri Abstract – The natural optimization technique is mimicry of natural phenomenon and is a soft computing approach that has many engineering applications. In this paper the an introduction is drawn of various schemes and its implementation is performed on practical microstrip patch antenna design using Bacterial Foraging Algorithm (BFO) Here, design of microstrip patch antenna using optimization technique is done. The schemes like Bacterial Foraging, Ant colony and particle swarm optimization are discussed. The various schemes are endowed with fitness level and are evolutionary in nature.. |
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