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Now showing items 11-20 of 28
Design of a novel high linearity down conversion mixer for GSM band applications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2012)
Double balanced Gilbert cell mixer (GCM) is the mostly used kind of mixer as it provides
conversion gain and has port to port isolation. This mixer lacks in linearity and noise figure
which are to be taken care in designing ...
Design of digital accelerometer based seismic sensor node
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
The aim of Design of Digital Accelerometer based Seismic Sensor Node is to propose a design for wireless sensor network for exploring the sub-surface region of the moon by studying the seismic waves generated over there. ...
FPGA implementation of multiband and multimode modem for software defined radio (SDR)
(Dhirubhai Ambani Institute of Information and Communication Technology, 2012)
Now a days Software Defined Radio(SDR) is becoming popular for wireless communication
because of it’s flexibility to change as per requirement through software. The work presented
here describes the different methods of ...
FIR filter for high speed 60 GHz wireless communications.
(Dhirubhai Ambani Institute of Information and Communication Technology, 2013)
In this thesis report the design and implementation of the FIR filter at 5 GS/s presented. IEEE 802.15.3c standard declared unlicensed band from 57 to 66 GHz. This 60 GHz wireless communication transmitter uses interpolator ...
Investigation on multi-band fractal antennas for satellite applications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
Remote sensing is a very important application of satellite communication. In remote sensing applications, multiple frequencies are utilized. Use of different antennas for different frequencies is a complex task and so use ...
Low noise amplifier design at 2 GHz
(Dhirubhai Ambani Institute of Information and Communication Technology, 2011)
Low Noise Amplifier (LNA) is one of the most important building blocks of any wireless
receiver. In this an attempt has been made to study two types of LNA designs. The first
design is the conventional which consists of ...
Precision agriculture using wireless sensor network
(Dhirubhai Ambani Institute of Information and Communication Technology, 2015)
Farming practices should evolve with the rapid increase in population. Recent
growth in wireless sensor network (WSN) has the capability to meet this objective.
Better quality in crop production can be achieved using ...
Robust surface coverage using deterministic grid based deployment in wireless sensor networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2010)
The rapid progress in the field of wireless communication ans MEMS technology has made wireless sensor networks (WSN) possible. These networks may have low cost sensors deployed which are capable of sensing any activity ...
Spectrum sensing in cognitive radio using quickest change detection framework
(Dhirubhai Ambani Institute of Information and Communication Technology, 2015)
Spectrum sensing is a term associated with detection of primary (licensed) users
(PU) by secondary (unlicensed) users (SU) to pursue opportunistic transmission
of their data. The problem of spectrum sensing is challenging ...
Spectrum sensing in cognitive radio networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2014)
In this thesis, we consider the problem of secondary users’ selection for cooperative spectrum sensing in cognitive radio networks. We assume that the secondary users involved in sensing transmit their spectral energy ...