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Tata Institute of Fundamental Research
(15 results)-
White Papers
An Introduction To Financial Mathematics
July 28, 2010, 12:00am PDT
It is important to acknowledge that financial markets serve a fundamental role in economic growth of nations by helping efficient allocation of investment of individuals to the most productive...
Provided by Tata Institute of Fundamental Research
-
White Papers
Transmission Capacity of Spectrum Sharing Ad-Hoc Networks With Multiple Antennas
October 5, 2010, 12:00am PDT
Two coexisting ad-hoc networks, primary and secondary, are considered, where each node of the primary network has a single antenna, while each node of the secondary network is equipped with...
Provided by Tata Institute of Fundamental Research
-
White Papers
Distributed Self-Tuning of Sensor Networks
January 1, 2011, 12:00am PST
This paper is motivated by the need for an ad hoc sensor network to autonomously optimise its performance for given task objective and constraints. Arguing that communication is the main...
Provided by Tata Institute of Fundamental Research
-
White Papers
Cascaded Orthogonal Space-Time Block Codes for Wireless Multi-Hop Relay Networks
March 31, 2011, 12:00am PDT
Distributed space-time block coding is a diversity technique to mitigate the effects of fading in multi-hop wireless networks, where multiple relay stages are used by a source to communicate with...
Provided by Tata Institute of Fundamental Research
-
White Papers
How Many Transmit Antennas to Use in a MIMO Interference Channel
May 31, 2011, 12:00am PDT
The problem of finding the optimal number of data streams to transmit in a multi-user MIMO scenario, where both the transmitters and receivers are equipped with multiple antennas is considered....
Provided by Tata Institute of Fundamental Research
-
White Papers
Throughput-Delay-Reliability Tradeoff With ARQ in Wireless Ad Hoc Networks
April 21, 2010, 12:00am PDT
The transmission capacity of an ad hoc network is the maximum allowable density of transmitting nodes, satisfying a per transmitter receiver rate, and outage probability constraints. The...
Provided by Tata Institute of Fundamental Research
-
White Papers
Throughput-Delay-Reliability Tradeoff in Ad Hoc Networks
April 20, 2010, 12:00am PDT
Delay-Reliability (D-R), and Throughput-Delay-Reliability (T-D-R) tradeoffs in an ad hoc network are derived for single hop and multi-hop transmission with Automatic Repeat reQuest (ARQ) on each...
Provided by Tata Institute of Fundamental Research
-
White Papers
Power Control in Multiuser Mulicarrier Wireless Data Networks
January 31, 2012, 12:00am PST
A game-theoretic model is presented to study the management of transmission power in a wireless data network. The authors propose a power game for a multiuser multicarrier setting where all the...
Provided by Tata Institute of Fundamental Research
-
Whitepapers
Security Architecture for Cluster Based Ad Hoc Networks
July 9, 2012, 12:00am PDT
Mobile Ad hoc NETworks (MANETs) are subject to various kinds of attacks. Deploying security mechanisms is difficult due to inherent properties of ad hoc networks, such as the high dynamics of...
Provided by Tata Institute of Fundamental Research
-
Whitepapers
Routing Protocols for Mobile and Vehicular Ad Hoc Networks: A Comparative Analysis
June 12, 2012, 12:00am PDT
The authors present comparative analysis of MANET (Mobile Ad-Hoc NETwork) and VANET (Vehicular Ad-Hoc NETwork) routing protocols, in this paper. The analysis is based on various design factors....
Provided by Tata Institute of Fundamental Research
-
Whitepapers
Survey on Security Issues in Cloud Computing and Associated Mitigation Techniques
June 13, 2012, 12:00am PDT
Cloud Computing holds the potential to eliminate the requirements for setting up of high-cost computing infrastructure for IT-based solutions and services that the industry uses. It promises to...
Provided by Tata Institute of Fundamental Research
-
Whitepapers
A Multi-Dimensional Approach Towards Intrusion Detection System
June 12, 2012, 12:00am PDT
In this paper, the authors suggest a multi-dimensional approach towards intrusion detection. Network and system usage parameters like source and destination IP addresses; source and destination...
Provided by Tata Institute of Fundamental Research
-
Whitepapers
A PAXOS Based State Machine Replication System for Anomaly Detection
June 12, 2012, 12:00am PDT
A number of systems in recent times suffer from attacks like DDoS and Ping of Death. Such attacks result in loss of critical system resources and CPU cycles, as these compromised systems behave in...
Provided by Tata Institute of Fundamental Research
-
Whitepapers
Proactive TCP Mechanism to Improve Handover Performance in Mobile Satellite and Terrestrial Networks
June 12, 2012, 12:00am PDT
Emerging standardization of Geo Mobile Radio (GMR-1) for satellite system is having strong resemblance to terrestrial GSM (Global System for Mobile communications) at the upper protocol layers and...
Provided by Tata Institute of Fundamental Research
-
Whitepapers
A Hybrid Approach Towards Intrusion Detection Based on Artificial Immune System and Soft Computing
July 1, 2012, 12:00am PDT
A number of works in the field of intrusion detection have been based on Artificial Immune System and Soft Computing. Artificial-Immune-System-based approaches attempt to leverage the...
Provided by Tata Institute of Fundamental Research
-
Whitepapers
A Hybrid Approach Towards Intrusion Detection Based on Artificial Immune System and Soft Computing
July 1, 2012, 12:00am PDT
A number of works in the field of intrusion detection have been based on Artificial Immune System and Soft Computing. Artificial-Immune-System-based approaches attempt to leverage the...
Provided by Tata Institute of Fundamental Research
-
Whitepapers
Proactive TCP Mechanism to Improve Handover Performance in Mobile Satellite and Terrestrial Networks
June 12, 2012, 12:00am PDT
Emerging standardization of Geo Mobile Radio (GMR-1) for satellite system is having strong resemblance to terrestrial GSM (Global System for Mobile communications) at the upper protocol layers and...
Provided by Tata Institute of Fundamental Research
-
Whitepapers
A PAXOS Based State Machine Replication System for Anomaly Detection
June 12, 2012, 12:00am PDT
A number of systems in recent times suffer from attacks like DDoS and Ping of Death. Such attacks result in loss of critical system resources and CPU cycles, as these compromised systems behave in...
Provided by Tata Institute of Fundamental Research
-
Whitepapers
A Multi-Dimensional Approach Towards Intrusion Detection System
June 12, 2012, 12:00am PDT
In this paper, the authors suggest a multi-dimensional approach towards intrusion detection. Network and system usage parameters like source and destination IP addresses; source and destination...
Provided by Tata Institute of Fundamental Research
-
Whitepapers
Survey on Security Issues in Cloud Computing and Associated Mitigation Techniques
June 13, 2012, 12:00am PDT
Cloud Computing holds the potential to eliminate the requirements for setting up of high-cost computing infrastructure for IT-based solutions and services that the industry uses. It promises to...
Provided by Tata Institute of Fundamental Research
-
Whitepapers
Routing Protocols for Mobile and Vehicular Ad Hoc Networks: A Comparative Analysis
June 12, 2012, 12:00am PDT
The authors present comparative analysis of MANET (Mobile Ad-Hoc NETwork) and VANET (Vehicular Ad-Hoc NETwork) routing protocols, in this paper. The analysis is based on various design factors....
Provided by Tata Institute of Fundamental Research
-
Whitepapers
Security Architecture for Cluster Based Ad Hoc Networks
July 9, 2012, 12:00am PDT
Mobile Ad hoc NETworks (MANETs) are subject to various kinds of attacks. Deploying security mechanisms is difficult due to inherent properties of ad hoc networks, such as the high dynamics of...
Provided by Tata Institute of Fundamental Research
-
White Papers
Power Control in Multiuser Mulicarrier Wireless Data Networks
January 31, 2012, 12:00am PST
A game-theoretic model is presented to study the management of transmission power in a wireless data network. The authors propose a power game for a multiuser multicarrier setting where all the...
Provided by Tata Institute of Fundamental Research
-
White Papers
Throughput-Delay-Reliability Tradeoff in Ad Hoc Networks
April 20, 2010, 12:00am PDT
Delay-Reliability (D-R), and Throughput-Delay-Reliability (T-D-R) tradeoffs in an ad hoc network are derived for single hop and multi-hop transmission with Automatic Repeat reQuest (ARQ) on each...
Provided by Tata Institute of Fundamental Research
-
White Papers
Throughput-Delay-Reliability Tradeoff With ARQ in Wireless Ad Hoc Networks
April 21, 2010, 12:00am PDT
The transmission capacity of an ad hoc network is the maximum allowable density of transmitting nodes, satisfying a per transmitter receiver rate, and outage probability constraints. The...
Provided by Tata Institute of Fundamental Research
-
White Papers
How Many Transmit Antennas to Use in a MIMO Interference Channel
May 31, 2011, 12:00am PDT
The problem of finding the optimal number of data streams to transmit in a multi-user MIMO scenario, where both the transmitters and receivers are equipped with multiple antennas is considered....
Provided by Tata Institute of Fundamental Research
-
White Papers
Cascaded Orthogonal Space-Time Block Codes for Wireless Multi-Hop Relay Networks
March 31, 2011, 12:00am PDT
Distributed space-time block coding is a diversity technique to mitigate the effects of fading in multi-hop wireless networks, where multiple relay stages are used by a source to communicate with...
Provided by Tata Institute of Fundamental Research
-
White Papers
Distributed Self-Tuning of Sensor Networks
January 1, 2011, 12:00am PST
This paper is motivated by the need for an ad hoc sensor network to autonomously optimise its performance for given task objective and constraints. Arguing that communication is the main...
Provided by Tata Institute of Fundamental Research
-
White Papers
Transmission Capacity of Spectrum Sharing Ad-Hoc Networks With Multiple Antennas
October 5, 2010, 12:00am PDT
Two coexisting ad-hoc networks, primary and secondary, are considered, where each node of the primary network has a single antenna, while each node of the secondary network is equipped with...
Provided by Tata Institute of Fundamental Research
-
White Papers
An Introduction To Financial Mathematics
July 28, 2010, 12:00am PDT
It is important to acknowledge that financial markets serve a fundamental role in economic growth of nations by helping efficient allocation of investment of individuals to the most productive...
Provided by Tata Institute of Fundamental Research
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