Advances in Wireless Networks
نویسندگان
چکیده
منابع مشابه
Advances in Wireless Sensor Networks
INTRODUCTION The origins of networks of sensors can be traced back to the 1980s when DARPA initiated the Distributed Sensor Networks program. However, recent advances in microprocessor fabrication have led to a dramatic reduction in both the physical size and power consumption of such devices. Battery and sensing technology as well as communications hardware have also followed a similar miniatu...
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This paper introduce the concept of the energy-efficient Information gathering algorithms for improving lifetime of WSNs and wirelessly recharge the sensor nodes. Here we have assumed that the sensor nodes and base-station are not mobile. The more over location and initial energy of the sensor nodes is known and number of sensor nodes is randomly distributed over a monitoring region. For the he...
متن کاملAdvances in Wireless Communications and Networks
Orthogonal frequency-division multiplexing (OFDM) is an orthogonal waveform technique for encoding digital data on multiple carrier frequencies. OFDM has developed into a popular scheme for wide band digital communication, used in applications such as wireless networks and 4G mobile communications such as LTE, WIMAX and Wifi. It still exists with some of the drawbacks, out of which, high peak t...
متن کاملAdvances in Wireless Communications and Networks
Data integrity has tremendous effects on any data communication system’s performance. Communication systems are probabilistic in nature and may fail due to errors generated during the transmission process. These errors are generated due to various factors as noise, heat and other disturbance from neighboring systems. In this paper, an error detection and correction scheme based on redundant res...
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ژورنال
عنوان ژورنال: Mobile Information Systems
سال: 2009
ISSN: 1574-017X,1875-905X
DOI: 10.1155/2009/525639