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Cache performance evaluation in DSR protocol through cross-layering for mobile ad hoc networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
Wireless mobile ad-hoc networks are being actively studied by many researchers these days. These networks are suitable to be used in various situations because of (i) their infrastructure-less property and (ii) the mobility ...
Scalable routing in mobile ad hoc networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
In Mobile Ad Hoc Networks (MANETs), performing routing is a challenging task in presence of the varying network parameters like node mobility, traffic and network size. It is very important to analyze the scalability ...
FPGA implementation of direct sequence spread spectrum techniques
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
This work presents the performance, noise analysis and FPGA implementation of Direct Sequence Spread Spectrum technique. Performance of signal increases as increasing parity bits in Hamming code algorithm. Increasing parity ...
Frequency offset estimation in OFDM signals using particle filtering along with resampling methods
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
Frequency offset is one of the main effects the Bit Error Rate(BER) in orthogonal frequency division multiplexing (OFDM). There are many applications which depend on OFDM. The present method describes the estimation of ...
Modeling MANETs using queuing networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2007)
Mobile Ad Hoc Networks (MANETs) are becoming an attractive solution to the services that require flexible establishment, dynamic and low cost wireless connectivity. Since nodes are mobile, routing results vary significantly ...
Design issues in direct conversion receiver
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
The wireless system is being rapidly proliferated in our life. The growing of capacity in wireless communication requires a new type of wireless communication method which does not affect current work on circuits and systems ...
Orthogonal frequency division multiplexing synchronization techniques
(Dhirubhai Ambani Institute of Information and Communication Technology, 2008)
Synchronization plays a major role in the design of a digital communication system. Essentially, this function aims at retrieving some reference parameters from the received signal that are necessary for reliable data ...
Comparative study between exponential back off and dynamic waiting strategies for medium access in wireless ad hoc networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
IEEE 802.11 DCF (IEEE 802.11 Distributed Coordination Function) is widely used MAC protocol for wireless channel access. Although it is developed for single hop networks where all nodes are in the same radio range, it can ...
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 ...
Analysis of address allocation protocols for mobile ad hoc networks
(Dhirubhai Ambani Institute of Information and Communication Technology, 2009)
In almost all networks, it is necessary to have a unique identifier for each node. This identifier is used to find out route locating a particular node. So an address is must for any node for unicast communication. Addresses ...