Communication

Uplink bit combining for multiple base-stations MIMO with applications to CoMP systems
This work considers a simple bit level combining technique, aided by robust bit reliability information, for uplink collaborating multiple-input multiple-output (MIMO) base-stations (also known as macrodiversity MIMO), operating over composite Rayleigh-lognormal fading channels. Bit reliability weights based on a robust modification of the logarithmic likelihood ratio, combined with instantaneo...


Joint sink deployment and association for multi-sink wireless camera networks
In this paper, we investigate the problem of joint sink deployment and association (JSDA) in multi-sink wireless camera networks (WCNs). Each camera in a WCN requires a different streaming rate of delivering its stream back to an access point (sink) because of various surveillance requirements, for example, event detection or target tracking. In a WCN where multiple channels are supported, the ...
A self-organized resource allocation scheme for heterogeneous macro-femto networks
This paper investigates the radio resource management (RRM) issues in a heterogeneous macro-femto network. The objective of femto deployment is to improve coverage, capacity, and experienced quality of service of indoor users. The location and density of user-deployed femtos is not known a-priori. This makes interference management crucial. In particular, with co-channel allocation (to improve ...


Effectiveness of entertainment education in communicating health information: a systematic review
In this paper, we conducted a meta-analysis of published studies on the effects of entertainment education (EE) on health communication. A search of databases identified 22 studies (N = 19517) that met our inclusion criteria and contained relevant statistics. Analysis of the results suggested that overall, EE's effects on health outcomes – as measured by knowledge, attitudes, intention, and b...
Measuring usage concentration of smartphone applications: Selective repertoire in a marketplace of choices
Using the tracking data of 1,645 smartphone users from Nielsen KoreanClick’s panel, this study examines the degree of concentration in smartphone application use in South Korea. The findings from this study are consistent with what we have learned from previous research of usage concentration and selective repertoire in a multichannel and multimedia environment. Overall, the levels of con...


Safety in movement: Mobile workers, mobile media
Mobile and locative digital media are an inextricable part of everyday working environments, are part of everyday work practices in organizations, and are part of organizational infrastructures. Likewise occupational safety and health (OSH) in many ways underpins the ways that people work in organizations. Yet the relationship of OSH to media, and to the ways in which people are mobile while at...
Maintaining social connectedness in a fast-changing world: Examining the effects of mobile phone uses on loneliness among teens in Tibet
This study examines how Tibetan teens use the mobile phone to maintain their social networks and how their social network connections via the mobile phone in turn affect their psychological well-being. In doing so, the study explores the effect of motives for mobile phone use and mobile phone skills as antecedents. Findings of a survey of 1,135 teen mobile phone users living in Tibet showed tha...

The acceptance of mobile government from a citizens' perspective: Identifying perceived risks and perceived benefits
Mobile government (in short: m-government) is just at the beginning of its rise as a future trend of e-government. Considering technical advancements such as mobile Internet, smartphones, and tablet-PCs, m-government represents a tremendous new potential for the communication between governments and citizens. There are many examples of failures of early e-government projects due to a lack of co...
Mobile phones and participatory communication for poverty eradication on public service broadcasting: The case of Tanzania Broadcasting Corporation (TBC)
All over the world people who use mobile phones to amplify their voices have revolutionised participatory communication in mass media. The use of mobile phones as instruments for participatory communication in public service broadcasting (PSB) has been growing and gaining strength in the so-called Third World. In this article it is argued that members of audience from different parts of Tanzani...

Perceiving spaces through digital augmentation: An exploratory study of navigational augmented reality apps
The study aims to explore effects of navigational augmented reality (AR) apps on the users’ perception of their surroundings, and to analyze in which ways these effects are enabled as well as limited by the performance of AR apps on currently available devices. To answer these questions, an exploratory quasi-experiment has been conducted, consisting of three groups of participants, each ...
Health benefits and barriers to cell phone use in low-income urban U.S. neighborhoods: Indications of technology maintenance
Little is known about the everyday health and safety benefits of cell phones for the U. S. poor, despite heightened risks of illness and exposure to crime for this population. Interviews with low-income, urban U. S. residents reveal that cell phones are an asset for psychological reassurance, crime prevention, and critical access to emergency help. At the same time findings reveal that these re...

Health Literacy and Numeracy: A Comparison of Magazine Health Messages
This content analysis of Cosmopolitan and Latina magazines (N = 348) examines health news stories read by millions of young U. S. women for factors related to health literacy. Findings show that the majority of magazine stories were brief and replete with technical language. Alternative explanations were provided only 41% of the time. More than half of stories in both magazines contained number...
Methyltrichlorosilane as an Effective Activation Agent for Swern Oxidation
A practical and efficient alternative version of the Swern oxidation has been successfully developed. Methyltrichlorosilane was used as an efficient activator of dimethylsulfoxide, which could oxidize a wide range of primary and secondary alcohols to the corresponding carbonyl compounds with good to excellent yields.
Cyber–Physical Device Authentication for the Smart Grid Electric Vehicle Ecosystem
Entity authentication and related key management is an active research topic in smart grid security. However, existing works seem to have overlooked the significance that the smart grid is a cyber–physical system, which entails more considerations in the integration of its cyber and physical domains. Ignoring this could possibly undermine security since the effects of cyber authorization...
A Game Theoretical Analysis of Data Confidentiality Attacks on Smart-Grid AMI
The widespread deployment of smart meters in the advanced metering infrastructure (AMI) raises privacy concerns. Analyzing the data collected from smart meters can expose habits and can be potentially used to predict consumers' behaviors. In this paper, we analyze the confidentiality of information in the AMI consisting of nodes with interdependent correlated security assets. On each node, the ...