TECH DIGITAL RESOURCE LIBRARY

Massachusetts Institute of Technology


Latest Content From Massachusetts Institute of Technology

Whitepaper: An Infrastructure for Location Aware Computing

by Massachusetts Institute of TechnologyJan 01, 2008

Mobile devices are able to determine their location to room-level granularity with existing Bluetooth technology, and to even greater resolution with the use of the recently adopted Bluetooth 1.2 specification, all while maintaining complete anonymity. The system is trivial to implement on a large scale, the network covering 5,000 square meters was deployed by a single student over the course of a few days at a cost of less than US$1,000.


Whitepaper: Simple,Effective, and Reliable Tag Storage System Design

by Massachusetts Institute of TechnologyJan 01, 2008

Applications such as Flickr or library catalogs often desire to store relationships between objects. Tags, , are versatile abstractions which succinctly capture this relationship. The research paper proposes a simple, effective, and reliable tag storage system design which applications can utilize to store and retrieve tags through an Application Programming Interface (API).


Whitepaper: Are Foreign Firms Privileged By Their Host Governments?

by Massachusetts Institute of TechnologyJan 01, 2008

This research paper from Massachusetts Institute of Technology describes that using the data from World Business Environment Survey (WBES) on over 10,000 firms across eighty one countries; this paper also finds significant regulatory advantages - as perceived by the firms themselves - enjoyed by foreign firms over domestic firms. The findings on regulatory advantages of foreign firms hold with a variety of alternative measures of regulations and with or without firm- and country-level attributes and industry and country controls. There is also evidence that foreign firms’ regulatory advantages are especially substantial vis-a-vis the politically weak domestic firms.


Whitepaper: Litigating Regulation: Corporate Strategy In Telecommunications

by Massachusetts Institute of TechnologyJan 01, 2008

This research paper from Massachusetts Institute of Technology demonstrate how firms strategically engage in litigation to overturn potentially harmful regulations passed by federal administrative agencies and to show how ideologically motivated judges in the courts can affect the litigation strategy of the firm and the outcomes of trials. This paper attempts to bring together these three disparate literatures in examining corporate non-market strategy.


Whitepaper: Amodel Of Final-Offer Arbitration In Regulation

by Massachusetts Institute of TechnologyJan 01, 2008

Regulatory process in which both the regulator and the regulated firm propose prices that, in case of disagreement, are settled through final-offer arbitration - a practice currently used in Chile for setting prices in the water sector. Rather than submitting a single offer, each party simultaneously submits an offer for each of the firm’s cost units (e.g., cost of raw water, capital cost). While a multiple-offers scheme allows the arbitrator to better approximate her ideal settlement, it may induce parties to submit widely divergent offers. This divergence, however, does not affect the arbitrator’s ability to learn from the offers.


Whitepaper: The Outsourcing And Off-shoring Competitive Landscape And Its Uncertainties

by Massachusetts Institute of TechnologyJan 01, 2008

Outsourcing refers to the practice during which a company subcontracts a business function to an outside supplier. Outsourcing providers are pressured to increase the value delivered to clients. This paper discusses the different categories of vendors or ESP’s, and their concerns. First, the difference between offshore providers and onshore providers is discussed. After that, the difference between low-end and high-end services is explained. These two aspects, serve as a description of the different types of outsourcing providers.


Whitepaper: Peer Effects And Entrepreneurship

by Massachusetts Institute of TechnologyJan 01, 2008

This research paper from Massachusetts Institute of Technology directly test the hypothesis that an individual’s colleagues might impact their transition to entrepreneurship, by looking at how diversity in the prior career histories of an individual’s peers relates to their own propensity to become an entrepreneur. They found that employees are more likely to become entrepreneurs if their co-workers have had prior self-employment experience or have had more diverse work experience in the past.


Whitepaper: Offshoring Radiology Services To India

by Massachusetts Institute of TechnologyJan 01, 2008

This research paper discusses teleradiology and medical image reconstruction from the perspectives of both India and its client countries. Radiology is an ""Extreme"" professional service with extensive usage of tacit rather than codified knowledge. The importance of tacit knowledge leads to long training periods, a limited global supply of radiologists and heavy government regulation, all of which are obstacles to a ""Flat world"". Computerization of low-end diagnostic radiology ultimately poses a bigger threat to the profession than offshoring.


Whitepaper: The Power Line Transmission Characteristics for an OFDM Signal

by Massachusetts Institute of TechnologyJan 01, 2008

This research paper measures what influence the sinusoidal transmission characteristics of the electric power line with various forms gave to the transmission characteristic of OFDM (Orthogonal Frequency Division Multiplexing) signal through PLC (Power Line Communication system) modem. The electric power line transmission line with various forms in a real environment is classified into two basic elements, which are an outlet type branch and a switch type branch. Next, PHY rate (Physical rate) is measured for each basic element connected with the PLC modem.


Whitepaper: Measured Data Rate From Adaptive Modulation in Wideband OFDM Systems

by Massachusetts Institute of TechnologyJan 01, 2008

Adaptive modulation is implemented on a wideband OFDM transceiver prototype to quantify its performance in indoor wireless environment. The measurements indicate that over a bandwidth of 100 MHz, the channel varies quite significantly. With a target uncoded Bit Error Rate of 10?3, it is found that at link distances of 1.0 to 10.8 meters, the data rate varies from 395 Mbps to 76 Mbps. The measured adaptive average data rate is 2.88 times the average data rate without adaptive modulation. Furthermore, the adaptive modulation is 8.9% of the entire transceiver modem which means it is of low complexity.