Synchronization in wireless communications

The last decade has witnessed an immense increase of wireless communications services in order to keep pace with the ever increasing demand for higher data rates combined with higher mobility. To satisfy this demand for higher data rates, the throughput over the existing transmission media had to be increased. Several techniques were proposed to boost up the data rate: multicarrier systems to combat selective fading, ultra wide band (UWB) communications systems to share the spectrum with other users, MIMO transmissions to increase the capacity of wireless links, iteratively decodable codes (e.g., turbo codes and LDPC codes) to improve the quality of the link, cognitive radios, and so forth

Unified radio and network control across heterogeneous hardware platforms

Experimentation is an important step in the investigation of techniques for handling spectrum scarcity or the development of new waveforms in future wireless networks. However, it is impractical and not cost effective to construct custom platforms for each future network scenario to be investigated. This problem is addressed by defining Unified Programming Interfaces that allow common access to several platforms for experimentation-based prototyping, research, and development purposes. The design of these interfaces is driven by a diverse set of scenarios that capture the functionality relevant to future network implementations while trying to keep them as generic as possible. Herein, the definition of this set of scenarios is presented as well as the architecture for supporting experimentation-based wireless research over multiple hardware platforms. The proposed architecture for experimentation incorporates both local and global unified interfaces to control any aspect of a wireless system while being completely agnostic to the actual technology incorporated. Control is feasible from the low-level features of individual radios to the entire network stack, including hierarchical control combinations. A testbed to enable the use of the above architecture is utilized that uses a backbone network in order to be able to extract measurements and observe the overall behaviour of the system under test without imposing further communication overhead to the actual experiment. Based on the aforementioned architecture, a system is proposed that is able to support the advancement of intelligent techniques for future networks through experimentation while decoupling promising algorithms and techniques from the capabilities of a specific hardware platform

Spartan Daily, November 19, 1991

Volume 97, Issue 56https://scholarworks.sjsu.edu/spartandaily/8193/thumbnail.jp

Wireless Telecommunications Issues: Cell Phone TV, Wireless Networks in Disaster Management, Ubiquitous Computing, and Adoption of Future Wireless Applications

This paper is a summary of a 2007 Association for Information Systems Americas Conference on Information Systems (AMCIS) panel discussion regarding current mobile wireless issues and technologies. The invited panelists are four faculty members specializing in information systems from the United States. The covered topics included cell phone TV and misconceptions surrounding it, wireless networks in disaster management, ubiquitous computing including anatomy of a mote and sensors, and the adoption of future wireless applications. First, we present wireless cell phone TV as a functioning multipurpose computer, or a Swiss army knife, of media devices. The misconceptions are stated, influenced by preconceived notions by the media critics as well as users. Next we discuss a range of wireless technologies including wearable computing, ad hoc and mesh wireless networks as a means of providing communications for first respondents during a natural or man-made disaster. Then we examine the anatomy of motes and RFIDs, including sensors, in an era of ubiquitous computing and a world of (inter-)connected objects. Finally, we discuss the socio-cultural constructs impacting users\u27 intentions to adopt future wireless applications

Spectrum sharing and aggregation for future wireless networks, part II

The papers in this special issue represent the second one in the sequel of three special issues on spectrum sharing and aggregation for future wirelessn networks

Aural Intimacies: Gendered Constructions of Familiarity on The Mary Margaret McBride Program

In this project I theorize the work of Mary Margaret McBride who hosted a number of shows on American network radio from 1934-1954. On her genre-defying programs, McBride chatted in a casual and unscripted way with guests, fluidly discussing both their professional and personal lives. McBride’s relationship with her listeners was characterized by feelings of closeness, trust, loyalty and intimacy (Ware, 2005). I connect McBride’s relationship with her fans to radio history and theory, especially certain ‘media fantasies’ (Verma, 2012) of the early twentieth century in which radio was understood as a particularly important medium for fostering connection, community, and democracy (Loviglio, 2005; Marvin, 1988; Mosco, 2004; Peters, 1999). I present findings from my archival research at the Library of Congress in Washington, DC. In my analysis, I follow Neil Verma (2012) and John Barnhurst and Kevin Nerone (2001), and focus on the form of McBride’s program. I investigate what her program sounds like, and how and why did it fostered such close personal connections between listeners, guests, and McBride. My research suggests a number of factors which may have contributed to the atmosphere of gendered familiarity evident in McBride’s work. I argue that McBride’s embrace of magazine format, innovative advertising techniques, use of pace and audioposition (Verma, 2012), combined with the fluidity and non-segmentation of her show, constructed an audio media context in which listeners felt connected to each other, to McBride, and to the products she promoted, constituting an emergent structure of feeling (Williams, 1977)