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Now showing items 11-20 of 26
Pulse shaping design for PAPR reduction in OFDM
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
Future mobile communications systems reaching for ever increasing data rates require higher bandwidths than those typical used in todays cellular systems. By going to higher bandwidth the (for low bandwidth) at fading ...
A 0.18µ low power dual-mode transceiver front-end design for high speed bluetooth systems
(Dhirubhai Ambani Institute of Information and Communication Technology, 2006)
Today’s market trend is to possess a single multi-purpose, multi-functional personal device for various wireless personal area network (WPAN) applications. So it raises a great demand to develop multi-mode/multi-standard ...
Channel estimation and tracking OFDM and MIMO systems
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
In this thesis, To estimate and track the slow Time varying channels in OFDM and MIMO systems. In first part: we have used a two-dimensional recursive least square adaptive channel estimation technique is used. In orthogonal ...
Cooperation enforcement mechanisms in wireless adhoc networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
Wireless adhoc networks are autonomous, infrastrutureless networks where there are no dedicated routers or base stations and nodes are expected to cooperate in Wireless performing routing duties to keep network connected. ...
Design and implementation of 128-point fixed point streaming FFT processor for OFDM based communication system
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
Fast Fourier Transform (FFT) processors are today one of the most important blocks in communication systems. They are used in every communication system from broadband to 3G and digital TV to Radio LANs. This master’s ...
Distributed clustering for heterogeneous wireless sensor network in data gathering applications
(Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
Wireless Sensor networks have revolutionized the paradigm of gathering and processing data in diverse environment such as, wildlife area, kindergarten or agriculture farm. The nodes in these networks usually have a very ...
Energy efficient data gathering protocol for wireless sensor network
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
Wireless Sensor Network is made up of hundreds and thousands of miniature electronic devices called node, which have sensors built on them. Functionality of a sensor is entirely application dependent. They can perform a ...
Executable specification design and simulation of OFDM based communication system
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
The communication system using the OFDM principle is today one of the most important application in communication field. This system has various applications from broadband to 3G and digital TV to Radio LANs. This master’s ...
Energy conserving voidless coverage in wireless ad-hoc sensor networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2005)
For many sensor network applications such as intrusion detection and military surveillance, it is necessary to provide full sensing coverage to a security-sensitive area while at the same time minimizing energy consumption ...
Identifying small world network properties in ad-hoc networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
Small World Network is a densely connected network with low degree of separation. These types of networks have high clustering property like regular network as well as have low average path length like random network. Thus, ...