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The drawbacks of high peak to average power ratio (PAPR) can outweigh all the potential benefits of Orthogonal Frequency Division Multiplexing (OFDM) signals. In this Paper, a sophisticated PAPR reduction technique, named Iterative Clipping and filtering (ICF) with DCT/IDCT transformation, is proposed for OFDM system. By considering the example of OFDM,(More)
A Wireless Local Area Network (WLAN) is a type of Local Area Network (LAN) that uses high frequency radio waves rather than wires to communicate and transmit data. It is a flexible data communication system implemented as an extension to or as an alternative for, a wired LAN. It provides large companies the option to connect the current wired networks to(More)
Roadside units in Vehicular Ad hoc Networks are essential for acting as base stations that facilitate information spreading to vehicular users in the roads. Typically, vehicular nodes search for an infrastructure within their vicinity to fulfill the requested services such as internet accessing or content file handling. Due to the essentiality of the(More)
—A handover decision is a significant problem, in next generation of wireless networks (4G). This is exacerbated when the Handoff decision is driven by user preferences (mainly transmission cost and wireless interface power consumption), wireless environment constraints (access network availability and properties and client communication capabilities). In(More)
It is with no doubt that recent trends indicate that cellular networks based on the 3G standards and wireless Local Area Networks (WLANs) coexist to offer multimedia services to end users. However, while users roam throughout this heterogeneous network, they should be automatically and transparently switched from one access technology to another such as(More)
To efficiently and stably deliver streaming media, researchers have developed technical solutions that are either based on a tree model or based on a mesh model. The disadvantage of tree-based model is limited stability and high cost, while the disadvantage of mesh-based model is low efficiency on streaming rate when nodes churn. In this paper, we propose(More)
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