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Yes / The paper presents a new modeling and design concept of antennas using polar- ization diversity of 2 £ 2 and 3 £ 3 Multiple Input Multiple Outputs (MIMO) system that is proposed for future mobile handsets. The channel capacity is investigated and discussed over Raleigh fading channel and compared to a linear/planner antenna array MIMO channel. The capacity is also discussed over three types of power azimuth spectrums. The results are compared to the constraints capacity limits in which the maximum capacity observed.

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In the early twenty first century, the mobile phone plays an integral role in helping young people shape their identity and achieve social goals. This means that designers of mobile phones are not only creating an artefact that will have a functional purpose for the end user, but one that will be saturated with cultural meanings. In response, the research conducted for this thesis aims to investigate the use of mobile phones in youth cultures so the social and cultural intricacies of interactions can be understood. Consistent with a user centred design approach, the insights from the user study are applied to the development of new technology. The result is the development of The Swarm; a mobile phone prototype that meets the specific social and cultural needs of the young users in the study. Integral to this is the development of a methodological approach that embeds cultural theory within Human Computer Interaction and more specifically, the user centred design process.

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Most mobile phones in Canada contain software that prevents the consumer from using the phone on multiple networks. This is known as a ‘software lock’, and is installed prior to the point of sale by the mobile service providers. As of 2011, all three large Canadian service providers have adopted a similar practice to charge a fee to remove the software lock from phones. This fee applies even after the consumer’s service contract with the provider ends. This thesis examines whether the practice of charging consumer a fee for removing the software lock after the contract expires is anti-competitive in Canada. Through examining economic theory and undergoing legal analysis, this thesis will argue that while the practice is clearly anti-competitive, it does not substantially lessen competition enough to be prevented under competition law. This thesis suggests that this industry practice should be prohibited through the passing of consumer protection legislation.

Most mobile phones in Canada contain software that prevents the consumer from using the phone on multiple networks. This is known as a ‘software lock’, and is installed prior to the point of sale by the mobile service providers. As of 2011, all three large Canadian service providers have adopted a similar practice to charge a fee to remove the software lock from phones. This fee applies even after the consumer’s service contract with the provider ends. This thesis examines whether the practice of charging consumer a fee for removing the software lock after the contract expires is anti-competitive in Canada. Through examining economic theory and undergoing legal analysis, this thesis will argue that while the practice is clearly anti-competitive, it does not substantially lessen competition enough to be prevented under competition law. This thesis suggests that this industry practice should be prohibited through the passing of consumer protection legislation.

The elaboration of this thesis involved several stages, and since it is a complex subject matter, it was imperative to maintain a multidisciplinary focus. In the rst stage, the need to improve the innovation performance in Latin America and the Caribbean is identied. In the second, the appropriate methodology for this research is selected. Here, it was determined that a framework comprising the innovation system approach is the most suitable framework for this research. In the third stage, the relevant body of extant literature is reviewed and the research problem formulated. In the fourth stage, the data is collected and characterized. During the fth stage, the gathered information is analyzed and the results presented. In the sixth stage, experiences in other regions are examined and best practices acquired. In the nal stage, the key enablers, best practices and the elements are identied, transformed and adapted into several recommendations for Latin American and Caribbean policy makers.

<p>Localization is projected to play a critical role in mobile computing applications. Nevertheless, the state of the art is inadequate especially when operating on mobile devices. More specifically, the on-phone GPS sensor has an unacceptable energy consumption and does not operate indoors. Alternate localization techniques, based on WiFi or GSM, alleviate some of the GPS limitations but provide degraded accuracy and assume pre-installed infrastructure. As a result, these solutions need extensive war-driving for collecting location fingerprints and, in many instances, limit services to regions close to drivable paths. Moreover, when infrastructure is scarce or missing, the localization accuracy is poor. Lastly, relying on hardware deployments is costly and raises scalability concerns when targeting wide regions.</p><p>To address the shortcomings of current solutions, we propose four new localization systems: (1) CompAcc enables energy-efficient, war-driving-free localization using the phone inertial sensors and digital maps, (2) Escort provides indoor localization by exploiting the phone inertial sensors and social environments where people are mobile, (3) SurroundSense enables indoor logical localization (e.g., inside Target) by sensing the user ambiance through the phone sensors, and (4) EnLoc proposes energy-efficient localization via personalized mobility profiling and predictions.</p> / Dissertation