Chen, Jieying. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2009. / Includes bibliographical references (p. 58-62). / Abstract in English only. / Abstract --- p.i / Acknowledgement --- p.iii / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Motivation --- p.1 / Chapter 1.2 --- Literature Review --- p.5 / Chapter 1.3 --- Contributions Of This Thesis --- p.7 / Chapter 1.4 --- Structure Of This Thesis --- p.8 / Chapter 2 --- Problem Formulation --- p.9 / Chapter 2.1 --- The JBAPC Problem --- p.9 / Chapter 2.2 --- The Single-Stage Reformulation --- p.12 / Chapter 3 --- The BARN Algorithm --- p.15 / Chapter 3.1 --- Preliminary Mathematics --- p.15 / Chapter 3.1.1 --- Duality Of The Linear Optimization Problem --- p.15 / Chapter 3.1.2 --- Benders Decomposition --- p.18 / Chapter 3.2 --- Solving The JBAPC Problem Using BARN Algorithm --- p.21 / Chapter 3.3 --- Performance And Convergence --- p.24 / Chapter 3.3.1 --- Global Convergence --- p.26 / Chapter 3.3.2 --- BARN With Error Tolerance --- p.26 / Chapter 3.3.3 --- Trade-off Between Performance And Convergence Time --- p.26 / Chapter 4 --- Accelerating BARN --- p.30 / Chapter 4.1 --- The Relaxed Master Problem --- p.30 / Chapter 4.2 --- The Feasibility Pump Method --- p.32 / Chapter 4.3 --- A-BARN Algorithm For Solving The JBAPC Problem --- p.34 / Chapter 5 --- Computational Results --- p.36 / Chapter 5.1 --- Global Optimality And Convergence --- p.36 / Chapter 5.2 --- Average Convergence Time --- p.37 / Chapter 5.3 --- Trade-off Between Performance And Convergence Time --- p.38 / Chapter 5.4 --- Average Algorithm Performance Of BARN and A-BARN --- p.39 / Chapter 6 --- Discussions --- p.47 / Chapter 6.1 --- Resource Allocation In The Uplink Multi-cell Networks --- p.47 / Chapter 6.2 --- JBAPC Problem In The Uplink Multi-cell Networks --- p.48 / Chapter 7 --- Conclusion --- p.50 / Chapter 7.1 --- Conclusion Of This Thesis --- p.50 / Chapter 7.2 --- Future Work --- p.51 / Chapter A --- The Proof --- p.52 / Chapter A.l --- Proof of Lemma 1 --- p.52 / Chapter A.2 --- Proof of Lemma 3 --- p.55 / Bibliography --- p.58

Offenders accepting contraband cell phones in secured facilities violate state corrections law, and the possession of these cell phones is a form of risk taking behavior. When offenders continue this risky behavior, it affects their decision making in other domains where they are challenging authorities; and may impact the length of their incarceration. This qualitative phenomenological study examined the lived experience of ex-offenders who had contraband cell phones in secured correctional facilities in order to better understand their reasons for taking risks with contraband cell phones. The theoretical foundation for this study was Trimpop's risk-homeostasis and risk-motivation theories that suggest an individual's behaviors adapt to negotiate between perceived risk and desired risk in order to achieve satisfaction. The research question explored beliefs and perceptions of ex-offenders who chose to accept the risk of using contraband cell phones during their time in secured facilities. Data were collected anonymously through recorded telephone interviews with 8 male adult ex-offenders and analyzed using thematic content analysis. Findings indicated participants felt empowered by possession of cell phones in prison, and it was an acceptable risk to stay connected to family out of concern for loved ones. The study contributes to social change by providing those justice system administrators, and prison managers responsible for prison cell phone policies with more detailed information about the motivations and perspectives of offenders in respect to using contraband cell phones while imprisoned in secured facilities.

<p>Today, information and communication technology is not only for professional use, but also for private tasks. In this thesis, the use of such technology for managing family information flow is investigated. Busy family life today, with school, work and leisure activites, makes coordination and synchronisation a burden. In what way cell-phones and Internet provides a support for those tasks is investigated, together with proposals for future technology.</p><p>The problem with coordination and synchronisation were found to be managed by a bulletin board placed at a central point at home. Besides the bulletin board, we found that calendars, shopping lists, and to-do lists are important. The families we investigated in field studies were all intensive users of both Internet and cell-phones.</p><p>Since the bulletin board played such an important role in the family life, we equipped families with cameras to be able to track what happened at those places with help of photo diaries. The field studies revealed that each family had their own unconscious procedure to manage the flow of notes on the bulletin board.</p><p>With technology, new problem will emerge. We investigated how notes on typical family bulletin boards may be visualised on a computer screen, and compared click-expand, zoom-pan and bifocal interfaces. The click-expand interface was substantially faster for browsing, and also easier to use.</p><p>An advantage of information and communication technology is that it may provide possibilities for multiple interfaces to information, and not only different terminals but also from different places. At home, a digital refrigerator door or a mobile web tablet; at work or at school, a conventional computer; when on the move, a cell-phone or a PDA. System architecture for these possibilities is presented.</p> / Report code: LiU-TEK-LIC-2004:39.

<p>Purpose/Aim: In the information and communication technology society (ICT) we live in today it is easy to feel that we are constantly expected to be available. The daily contact with the Internet and the use of cell phones has changed our way to communicate. With this in mind in combination with the increased stress among young adults my aim is to investigate how young adults, aged 23-26 years, experience to be constantly connected and available through the Internet and the cell phone. What are their opinions, attitudes and feelings about what this entails in their lives?</p><p>Material/Method: The essay is based on four focus group interviews with sixteen students from Uppsala University aged 23-26, two groups consisting of women and two groups consisting of men. The ICT & Internet research is developing rapidly which led me to do an exploratory study that is hypothesis-generating and which I hope can be used for forthcoming research of the consequences of the ICT society. The empiric result has been analyzed from a behavioural science perspective.</p><p>Main results: The results have been interesting from several perspectives. The focus groups seem to think that the Internet and cell phone use is the best thing that has happened. They are so-called "Multitaskers" and have no problems to do several things simultaneously. The relationship between ICT and stress becomes slightly more noticeable among the girls. I dare to say that the constant availability do result in a certain stress, which I based on the clear statements about stress that came up between the lines. The focus groups are highly dependent on both their cell phone and access to Internet. They have also developed new cell phone behaviours that are customized to different situations and people.</p>

<p>Abstract</p><p>Title: “My social extension” – Twelve girls on the relationship with the mobile phone (“Min sociala</p><p>anknytning” – Tolv tjejer om relationen till mobiltelefonen)</p><p>Number of pages: 42 (43 including enclosure)</p><p>Author: Mattias Köhlmark</p><p>Tutor: Göran Svensson</p><p>Course: Media and Communication Studies D</p><p>Period: Spring semester 2006</p><p>University: Division of Media and Communication, Department of Information Science,</p><p>Uppsala University.</p><p>Purpose/Aim: To investigate the emotional aspect of mobile phones and the source of those</p><p>emotions.</p><p>Material/Method: The data presented stems from three unstructured focus groups with participants</p><p>at the age of 16-19 years.</p><p>Main results: The key findings largely supports Vincents theories that the emotional language</p><p>guided towards mobile phones comes from the friends it allows us connect with. Also emancipation</p><p>can be seen as a driving force behind these emotions.</p><p>Keywords: mobile phone, mobility, absent present others, emancipation, cell phone, emotion,</p><p>emotional language,</p>

This thesis studies cooperative techniques that rely on femtocell user diversity to improve the downlink communication quality of macrocell users. We analytically analyze and evaluate the achievable performance of these techniques in the downlink of Rayleigh fading channels. We provide an approximation of both the bit-error rate (BER) and the data throughput that macrocell users receive with femtocell user cooperation. Using simulations, we show that under reasonable SNR values, cooperative schemes enhance the performances of macrocells by improving the BER, outage probability, and data throughput of macrocell users significantly when compared with the traditional, non-cooperative schemes. / Graduation date: 2012

Thesis (M.S.)--Rochester Institute of Technology, 2007. / Typescript. Includes bibliographical references.

Purpose/Aim: In the information and communication technology society (ICT) we live in today it is easy to feel that we are constantly expected to be available. The daily contact with the Internet and the use of cell phones has changed our way to communicate. With this in mind in combination with the increased stress among young adults my aim is to investigate how young adults, aged 23-26 years, experience to be constantly connected and available through the Internet and the cell phone. What are their opinions, attitudes and feelings about what this entails in their lives? Material/Method: The essay is based on four focus group interviews with sixteen students from Uppsala University aged 23-26, two groups consisting of women and two groups consisting of men. The ICT &amp; Internet research is developing rapidly which led me to do an exploratory study that is hypothesis-generating and which I hope can be used for forthcoming research of the consequences of the ICT society. The empiric result has been analyzed from a behavioural science perspective. Main results: The results have been interesting from several perspectives. The focus groups seem to think that the Internet and cell phone use is the best thing that has happened. They are so-called "Multitaskers" and have no problems to do several things simultaneously. The relationship between ICT and stress becomes slightly more noticeable among the girls. I dare to say that the constant availability do result in a certain stress, which I based on the clear statements about stress that came up between the lines. The focus groups are highly dependent on both their cell phone and access to Internet. They have also developed new cell phone behaviours that are customized to different situations and people.

Abstract Title: “My social extension” – Twelve girls on the relationship with the mobile phone (“Min sociala anknytning” – Tolv tjejer om relationen till mobiltelefonen) Number of pages: 42 (43 including enclosure) Author: Mattias Köhlmark Tutor: Göran Svensson Course: Media and Communication Studies D Period: Spring semester 2006 University: Division of Media and Communication, Department of Information Science, Uppsala University. Purpose/Aim: To investigate the emotional aspect of mobile phones and the source of those emotions. Material/Method: The data presented stems from three unstructured focus groups with participants at the age of 16-19 years. Main results: The key findings largely supports Vincents theories that the emotional language guided towards mobile phones comes from the friends it allows us connect with. Also emancipation can be seen as a driving force behind these emotions. Keywords: mobile phone, mobility, absent present others, emancipation, cell phone, emotion, emotional language,

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