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Indian Institute of Technology Bombay
(116 results)-
White Papers
Modeling and Performance Analysis of Telephony Gateway Registration Protocol
July 19, 2007, 12:00am PDT
Telephony gateways are devices that interface between IP telephony networks and the PSTN. A telephony proxy or Location Server (LS) that attempts to connect a call for an end user may need to...
Provided by Indian Institute of Technology Bombay
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White Papers
Optimal Relay Placement for Coverage Extension in LTE-A Cellular Systems
September 5, 2011, 12:00am PDT
Third Generation Partnership Project (3GPP) Long Term Evolution-Advanced (LTE-A) has considered the deployment of Relay Nodes (RNs) for cost-effective throughput enhancement and coverage...
Provided by Indian Institute of Technology Bombay
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White Papers
IPv6 in WiMAX Networks - Challenges for Broadband Wireless
December 11, 2010, 12:00am PST
Broadband wireless access is one of the ways to enable widespread broadband Internet access in India. Worldwide Interoperability for Microwave Access (WiMAX) is a proven technology choice for...
Provided by Indian Institute of Technology Bombay
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White Papers
Robust Active Queue Management for Wireless Networks
September 17, 2009, 12:00am PDT
Active Queue Management (AQM) algorithms have been extensively studied in the literature in the context of wired networks. In this paper, the authors study AQM for wireless networks. Unlike wired...
Provided by Indian Institute of Technology Bombay
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White Papers
A Self-Organized Resource Allocation Using Inter-Cell Interference Coordination (ICIC) in Relay-Assisted Cellular Networks
June 6, 2011, 12:00am PDT
In a multi-cell scenario, the Inter-Cell Interference (ICI) is detrimental in achieving the intended system performance, in particular for the edge users. There is paucity of work available in...
Provided by Indian Institute of Technology Bombay
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White Papers
Performance Analysis of TCP and UDP-Based Applications in a IEEE 802.16 Deployed Network
September 20, 2011, 12:00am PDT
In this paper, the authors focus on various experiments conducted to analyze the performance of Transmission Control Protocol (TCP) and Universal Datagram Protocol (UDP) based applications in a...
Provided by Indian Institute of Technology Bombay
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White Papers
Downlink Erlang Capacity of Cellular OFDMA
November 29, 2010, 12:00am PST
In this paper, the authors present a novel approach to evaluate the downlink Erlang capacity of a cellular Orthogonal Frequency Division Multiple Access (OFDMA) system with 1:1 frequency reuse....
Provided by Indian Institute of Technology Bombay
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White Papers
On Achieving Marton's Region for Broadcast Channel Using Feedback
December 8, 2010, 12:00am PST
The authors consider a two user Discrete Memoryless Broadcast Channel (DMBC) with perfect feedback from both the receivers. The best known achievable region for the general DMBC without feedback...
Provided by Indian Institute of Technology Bombay
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White Papers
Social Network Analysis of the Short Message Service
October 3, 2009, 12:00am PDT
In this paper, the authors analyze patterns in the Short Message Service (SMS) behavior of customers in a large telecom service provider network. Toward this, they construct SMS Graphs, which are...
Provided by Indian Institute of Technology Bombay
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White Papers
Diversity Combining and Packet Size Adaptation for Maximizing Throughput of ARQ Protocols in AWGN and Fading Channel
July 21, 2009, 12:00am PDT
Multi-hop wireless network based on IEEE 802.11 Wi-Fi technology has emerged as a cost effective solution for accessing cellular networks or the Internet from the remote rural areas of the...
Provided by Indian Institute of Technology Bombay
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White Papers
Scheduling With Limited Information in Wireless Systems
November 29, 2008, 12:00am PST
Opportunistic scheduling is a key mechanism for improving the performance of wireless systems. However, this mechanism requires that transmitters are aware of channel conditions (or CSI, Channel...
Provided by Indian Institute of Technology Bombay
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White Papers
Power Optimal Signaling for Fading Multi-Access Channel in Presence of Coding Gap
February 27, 2009, 12:00am PST
The authors consider a Gaussian multi-access fading channel with perfect Channel Side Information (CSI) at the transmitters and the receiver. This models many important practical systems including...
Provided by Indian Institute of Technology Bombay
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White Papers
SQ-AODV: A Novel Energy-Aware Stability-Based Routing Protocol for Enhanced QoS in Wireless Ad-Hoc Networks
September 15, 2008, 12:00am PDT
The authors propose a novel, energy-aware, routing protocol for Quality-of-Service (QoS) support in an infrastructure-less ad-hoc network. Their Stability-based, QoS-capable Ad-hoc On-demand...
Provided by Indian Institute of Technology Bombay
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White Papers
An Indexing Scheduler for Delay Constrainted Scheduling With Applications to IEEE 802.16
September 30, 2007, 12:00am PDT
The authors consider the problem of scheduling users on the downlink of a Time Division Multiplexed (TDM) system with constraints on the average packet delays over a fading wireless channel. Their...
Provided by Indian Institute of Technology Bombay
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White Papers
On Cross Layer Congestion Control for CDMA-Based Ad-Hoc Networks
December 16, 2007, 12:00am PST
The authors investigate a cross layer congestion control technique for TCP Reno-2 (NewReno) in CDMA-based wireless ad-hoc networks in which both TCP layer and PHY layer jointly control congestion....
Provided by Indian Institute of Technology Bombay
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White Papers
Entropy-Optimal Generalized Token Bucket Regulator
January 1, 2011, 12:00am PST
The authors derive the maximum entropy of a flow (information utility) which conforms to traffic constraints imposed by a generalized token bucket regulator, by taking into account the side...
Provided by Indian Institute of Technology Bombay
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White Papers
Discrete Rate Scheduling for Power Efficient Transmission Over Wireless Link
January 1, 2011, 12:00am PST
While scheduling transmissions in a wireless communications system can result in significant power savings, a realistic scheduling scheme must take into acvount practical constraints that apply to...
Provided by Indian Institute of Technology Bombay
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White Papers
A Multi-Layer Artificial Neural Network Architecture Design for Load Forecasting in Power Systems
January 28, 2008, 12:00am PST
In this paper, the modelling and design of artificial neural network architecture for load forecasting purposes is investigated. The primary pre-requisite for power system planning is to arrive at...
Provided by Indian Institute of Technology Bombay
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White Papers
Reachability of Safe State for Online Update of Concurrent Programs
March 5, 2010, 12:00am PST
Online update helps in reducing the maintenance downtime by applying a patch to a running process. To avoid the errors that can arise due to an online update, existing online update solutions...
Provided by Indian Institute of Technology Bombay
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White Papers
Quantitative Synthesis for Concurrent Programs
April 22, 2011, 12:00am PDT
The authors present an algorithmic method for the quantitative, performance-aware synthesis of concurrent programs. The input consists of a non-deterministic partial program and of a parametric...
Provided by Indian Institute of Technology Bombay
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White Papers
On the Usage of FDLs in Optical Parallel Transmission to Support High Speed Ethernet
December 6, 2011, 12:00am PST
Parallel transmission in the optical layer can enable a scalable network migration from low speed interfaces to high speed serial interfaces, such as 100Gbps Ethernet, as they become available. It...
Provided by Indian Institute of Technology Bombay
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White Papers
Delay Contained: Scheduling Voice Over Multi-Hop Multi-Channel Wireless Mesh Networks
September 28, 2010, 12:00am PDT
In this paper, the authors consider the goal of scheduling the maximum number of voice calls in a TDMA-based multi-radio, multi-channel mesh network. One of main challenges to achieve this goal is...
Provided by Indian Institute of Technology Bombay
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White Papers
Feedback Based Distributed Admission Control in 802.11 WLANs
July 28, 2009, 12:00am PDT
A distributed Connection Admission Control (CAC) scheme where stations independently admit or reject flows based on channel utilization threshold is easy to implement for WLANs. However, owing to...
Provided by Indian Institute of Technology Bombay
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White Papers
Adaptive Admission Control for Web Applications With Variable Capacity
May 14, 2009, 12:00am PDT
The system capacity available to a multi-tier Web based application is often a dynamic quantity. Most static threshold-based overload control mechanisms are best suited to situations where the...
Provided by Indian Institute of Technology Bombay
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White Papers
PerfCenter: A Methodology and Tool for Performance Analysis of Application Hosting Centers
August 15, 2007, 12:00am PDT
The authors present a tool, PerfCenter that takes as input the deployment, configuration, message flow and workload details of the hardware and software servers in an application hosting center,...
Provided by Indian Institute of Technology Bombay
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White Papers
Censor Networks: A Critique of "Sensor Networks" From a Systems Perspective
July 1, 2008, 12:00am PDT
This paper presents a critique of the field of "Wireless Sensor Networks (WSNs)". Literature in this domain falls into two main, distinct categories: algorithms or protocols, and...
Provided by Indian Institute of Technology Bombay
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White Papers
Automated Tagging to Enable Fine-Grained Browsing of Lecture Videos
June 21, 2011, 12:00am PDT
Many universities offer distance learning by recording classroom lectures and making them accessible to remote students over the Internet. A university's repository usually contains hundreds of...
Provided by Indian Institute of Technology Bombay
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White Papers
Capturing Task and Dependency Aspects in Agent Oriented Requirement Specifications
January 31, 2008, 12:00am PST
A method of capturing task and dependency aspects in an agent oriented requirements methodology based on Formal Tropos is presented. The emphasis is on capturing functional aspects in formal...
Provided by Indian Institute of Technology Bombay
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White Papers
Energy Harvesting Sensor Nodes: Survey and Implications
December 19, 2008, 12:00am PST
Sensor networks with battery-powered nodes can seldom simultaneously meet the design goals of lifetime, cost, sensing reliability and sensing and transmission coverage. Energy-harvesting,...
Provided by Indian Institute of Technology Bombay
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Whitepapers
On Throughput Performance of Decode and Forward Cooperative Relaying With Packet Combining and ARQ
May 1, 2012, 12:00am PDT
Cooperative Diversity can be used by wireless nodes to take the benefit of broadcast nature and inherent spatial diversity of wireless channel to relay messages for each others. This helps to...
Provided by Indian Institute of Technology Bombay
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White Papers
End-to-End QoS Over Internet
January 12, 2009, 12:00am PST
The problem of end-to-end Quality of Service (QoS) over internet can be split into two parts: The first part is to develop framework for information exchange, signaling, path selection and setup...
Provided by Indian Institute of Technology Bombay
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White Papers
RFIDPlanner - A Coverage Planning Tool for RFID Networks
January 1, 2009, 12:00am PST
Radio Frequency Identification or RFID systems are emerging as economical solutions for fast identification of objects. One of the important aspects of setting up a RFID network is deploying RFID...
Provided by Indian Institute of Technology Bombay
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White Papers
Implementation of WiFiRe and Rural WiMAX
July 22, 2007, 12:00am PDT
Long range wireless for data and voice connectivity is being considered as viable and affordable solution for rural India since few years now. Numerous solutions were presented to bridge the...
Provided by Indian Institute of Technology Bombay
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White Papers
On TCP-Aware Uplink Scheduling in IEEE 802.16 Networks
November 24, 2007, 12:00am PST
This paper propose two polling based scheduling schemes for applications based on TCP in a multipoint-to-point IEEE 802.16 network. The first scheme uses TCP congestion window (cwnd) size, whereas...
Provided by Indian Institute of Technology Bombay
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White Papers
On TCP Aware Uplink Scheduling in WiMAX Networks
January 1, 2009, 12:00am PST
This paper proposes polling based scheduling algorithms for TCP based applications in multipoint-to-point WiMAX networks. The first proposed scheduling algorithm uses TCP Congestion Window (cwnd)...
Provided by Indian Institute of Technology Bombay
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White Papers
TDMA Scheduling in Long-Distance WiFi Networks
August 1, 2008, 12:00am PDT
In the last few years, long-distance WiFi networks have been used to provide Internet connectivity in rural areas. The strong requirement to support real-time applications in these settings leads...
Provided by Indian Institute of Technology Bombay
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White Papers
Energy-Aware Contour Covering Using Collaborating Mobile Sensors
October 26, 2009, 12:00am PDT
Environmental sensing systems are useful in the area of disaster management where the system can provide alerts as well as remediation services in the event of a disaster such as pollutant spills....
Provided by Indian Institute of Technology Bombay
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White Papers
Network Bandwidth Configuration Tool for Xen Virtual Machines
December 8, 2009, 12:00am PST
Performance differentiation has always been a requirement in virtualized environments, especially in case where virtualization is used in high-end data center applications. In this paper, the...
Provided by Indian Institute of Technology Bombay
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White Papers
Balancing Response Time and CPU Allocation in Virtualized Data Centers Using Optimal Controllers
April 2, 2010, 12:00am PDT
The cloud computing paradigm proposes a flexible payment model, where a cloud user pays only for the amount of resources used. Thus, the cloud provider must only allocate as many resources to a...
Provided by Indian Institute of Technology Bombay
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White Papers
Affinity-Aware Modeling of CPU Usage for Provisioning Virtualized Applications
April 21, 2011, 12:00am PDT
While virtualization-based systems become a reality, an important issue is that of virtual machine migration-enabled consolidation and dynamic resource provisioning. Mutually communicating virtual...
Provided by Indian Institute of Technology Bombay
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White Papers
Dynamic CPU Share Allocation and Server Consolidation in Virtualized Data Centers
January 12, 2009, 12:00am PST
Data centers owners all over the world are facing the complex problem of reducing the cost of management without violation of SLAs. Virtualization as a technology for server consolidation is used...
Provided by Indian Institute of Technology Bombay
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White Papers
A Practical Perspective on the Design and Implementation of Enterprise Integration Solution to Improve QoS Using SAP NetWeaver Platform
March 12, 2010, 12:00am PST
Most of the enterprise operations require information from several systems within and outside the enterprises. The past few years have seen explosive growth in direct program to program...
Provided by Indian Institute of Technology Bombay
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White Papers
Static Program Partitioning for Embedded Processors
January 1, 2011, 12:00am PST
Modern processors have a small on-chip local memory for instructions. Usually it is in the form of a cache but in some cases it is an addressable memory. In the paper, the user is required to...
Provided by Indian Institute of Technology Bombay
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White Papers
Analyzing Fine-Grained Hypertext Features for Enhanced Crawling and Topic Distillation
January 1, 2011, 12:00am PST
Early Web search engines closely resembled Information Retrieval (IR) systems which had matured over several decades. Around 1996 - 1999, it became clear that the spontaneous formation of...
Provided by Indian Institute of Technology Bombay
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White Papers
Estimating Network Link Characteristics Using Packet-Pair Dispersion: A Discrete Time Queueing Theoretic View
November 18, 2009, 12:00am PST
Packet-dispersion based measurement tools insert pairs of probe packets with a known separation into the network for transmission over a unicast path or a multicast tree. Samples of the separation...
Provided by Indian Institute of Technology Bombay
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White Papers
Trapdoor one way functions associated with exponentiation
March 15, 2011, 12:00am PDT
This paper shows that if exponentiation b = Xk in groups of finite field units or B = [k]X in elliptic curves is considered as encryption of X with exponent k treated as symmetric key, then the...
Provided by Indian Institute of Technology Bombay
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White Papers
A Channel Coding Perspective of Recommendation Systems
January 13, 2009, 12:00am PST
Recommender systems are commonly used to suggest content (movies, books, etc.) that is relevant to a given buyer. The most common approach is to predict the rating that a potential buyer might...
Provided by Indian Institute of Technology Bombay
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White Papers
On Distributed Computation in Noisy Random Planar Networks
December 25, 2007, 12:00am PST
The authors consider distributed or 'In-Network' computation of functions of sensing data in sensor networks in two dimensions. The sensor nodes collect sensing data and communicate with other...
Provided by Indian Institute of Technology Bombay
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White Papers
Proxy Signature Scheme With Effective Revocation Using Bilinear Pairings
December 19, 2007, 12:00am PST
The authors present a proxy signature scheme using bilinear pairings that provides effective proxy revocation. The scheme uses a binding-blinding technique to avoid secure channel requirements in...
Provided by Indian Institute of Technology Bombay
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White Papers
Link Scheduling in STDMA Wireless Networks: A Line Graph Approach
December 11, 2007, 12:00am PST
A prevalent scheme for spatial reuse in wireless networks is Spatial Time Division Multiple Access (STDMA), in which time is divided into fixed-length slots that are organized cyclically. An STDMA...
Provided by Indian Institute of Technology Bombay
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White Papers
Algorithms and Approaches of Proxy Signature: A Survey
February 1, 2008, 12:00am PST
Digital signature is a cryptographic means through which the authenticity, data integrity and senders non-repudiation can be verified. Typically, digital signature of a document is a piece of...
Provided by Indian Institute of Technology Bombay
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White Papers
PTC : Proxies That Transcode and Cache in Heterogeneous Web Client Environments
January 1, 2011, 12:00am PST
Advances in computing and communication technologies have resulted in a wide variety of networked mobile devices that access data over the Internet. In this paper, the authors argue that servers...
Provided by Indian Institute of Technology Bombay
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White Papers
Pothole Detection and Warning System Using Wireless Sensor Networks
October 21, 2008, 12:00am PDT
This position paper aims at proposing a novel Pothole Detection System which assists the driver in avoiding potholes on the roads, by giving prior warnings. The architectural design further...
Provided by Indian Institute of Technology Bombay
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White Papers
Distributed Apportioning Based Reachability Analysis of Concurrent Java Programs
January 1, 2010, 12:00am PST
Reachability analysis is an important and well-known tool for static analysis of critical properties in concurrent programs, such as freedom from deadlocks. Direct application of traditional...
Provided by Indian Institute of Technology Bombay
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White Papers
Conversion of Java Applets Animations to Java MIDlets
August 24, 2009, 12:00am PDT
Java applets are used in e-learning, mainly for creating animations. Many leading educational and professional organizations have large repositories of animations, created using Java applets which...
Provided by Indian Institute of Technology Bombay
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White Papers
XSpace - A Tuple Space for XML & Its Application in Orchestration of Web Services
January 1, 2010, 12:00am PST
Today's extended enterprise calls for the integration of several disparate systems built using multiple technologies and executing across firewall boundaries. The integration is usually done in...
Provided by Indian Institute of Technology Bombay
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White Papers
Cross Layer based Congestion Control in Wireless Networks
January 1, 2010, 12:00am PST
In this paper, the authors discuss a cross layer congestion control technique of TCP Reno-2 in wireless networks. In this both TCP layer and PHY layer jointly control congestion. The PHY layer...
Provided by Indian Institute of Technology Bombay
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White Papers
Efcient Data Management on Lightweight Computing Devices
January 1, 2010, 12:00am PST
Lightweight computing devices are becoming ubiquitous and an increasing number of applications are being developed for these devices. Many applications deal with a significant amount of data and...
Provided by Indian Institute of Technology Bombay
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White Papers
Secure Mobile Payments
November 24, 2008, 12:00am PST
This paper is the final report for the course project on secure mobile payments. It starts with an introduction and continues in chapter 2 with a specification of the payment domain, the involved...
Provided by Indian Institute of Technology Bombay
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White Papers
Security Issues in Mobile Payment Systems
December 21, 2007, 12:00am PST
The national exchequer, the banking industry and regular citizens all incur a high overhead in using physical cash. Electronic cash and cell phone-based payment in particular is a viable...
Provided by Indian Institute of Technology Bombay
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White Papers
netscout - Adaptive Network Monitoring and Threat Countering Mechanism
June 6, 2009, 12:00am PDT
Networks have policies in place to in order to en-sure efficient and fair resource utilization and protection of network installations. An effective monitoring and countering mechanism needs a...
Provided by Indian Institute of Technology Bombay
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White Papers
A MAC-Aware Energy Efficient Reliable Transport Protocol for Wireless Sensor Networks
December 20, 2008, 12:00am PST
In a Wireless Sensor Network (WSN), interesting events are reported to the sink by the sensors in a distributed manner. Applications running at the sink require certain reliability in terms of...
Provided by Indian Institute of Technology Bombay
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White Papers
Data Mining: Understanding Data and Disease Modeling
January 1, 2009, 12:00am PST
Analyzing large data sets requires proper understanding of the data in advance. This would help domain experts to influence the data mining process and to properly evaluate the results of a data...
Provided by Indian Institute of Technology Bombay
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White Papers
Denial of Service & Distributed Denial of Service Attacks
November 20, 2007, 12:00am PST
Denial of Service attacks aims to overwhelm a server or a network in order to paralyze its normal activity. Today, most organisations provide services over the internet hence an attack which...
Provided by Indian Institute of Technology Bombay
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White Papers
TDMA Scheduling in Long-Distance WiFi Networks
August 1, 2008, 12:00am PDT
In the last few years, long-distance WiFi networks have been used to provide Internet connectivity in rural areas. The strong requirement to support real-time applications in these settings leads...
Provided by Indian Institute of Technology Bombay
-
White Papers
On TCP Aware Uplink Scheduling in WiMAX Networks
January 1, 2009, 12:00am PST
This paper proposes polling based scheduling algorithms for TCP based applications in multipoint-to-point WiMAX networks. The first proposed scheduling algorithm uses TCP Congestion Window (cwnd)...
Provided by Indian Institute of Technology Bombay
-
White Papers
On TCP-Aware Uplink Scheduling in IEEE 802.16 Networks
November 24, 2007, 12:00am PST
This paper propose two polling based scheduling schemes for applications based on TCP in a multipoint-to-point IEEE 802.16 network. The first scheme uses TCP congestion window (cwnd) size, whereas...
Provided by Indian Institute of Technology Bombay
-
White Papers
Implementation of WiFiRe and Rural WiMAX
July 22, 2007, 12:00am PDT
Long range wireless for data and voice connectivity is being considered as viable and affordable solution for rural India since few years now. Numerous solutions were presented to bridge the...
Provided by Indian Institute of Technology Bombay
-
White Papers
RFIDPlanner - A Coverage Planning Tool for RFID Networks
January 1, 2009, 12:00am PST
Radio Frequency Identification or RFID systems are emerging as economical solutions for fast identification of objects. One of the important aspects of setting up a RFID network is deploying RFID...
Provided by Indian Institute of Technology Bombay
-
White Papers
End-to-End QoS Over Internet
January 12, 2009, 12:00am PST
The problem of end-to-end Quality of Service (QoS) over internet can be split into two parts: The first part is to develop framework for information exchange, signaling, path selection and setup...
Provided by Indian Institute of Technology Bombay
-
White Papers
A Multi-Layer Artificial Neural Network Architecture Design for Load Forecasting in Power Systems
January 28, 2008, 12:00am PST
In this paper, the modelling and design of artificial neural network architecture for load forecasting purposes is investigated. The primary pre-requisite for power system planning is to arrive at...
Provided by Indian Institute of Technology Bombay
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White Papers
Subtle Issues in the Design of a Database Tier Firewall
January 1, 2008, 12:00am PST
Applications such as centralized Supply Chain Management permit multiple business partners to host their own customized components at the same site with selective access to a common shared...
Provided by Indian Institute of Technology Bombay
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