Appropriations

2020 ◽  
pp. 86-126
Author(s):  
Arnold Michael

This chapter considers how media landscapes in the home have shifted over this century and examines how devices relate to each other and to householders to create dynamic and evolving media ecologies. At the turn of this century, a typical domestic media ecology comprised a cathode-ray television in the living room, perhaps connected to a videocassette recorder; a desktop computer in a home office, perhaps connected to a dial-up modem; and a landline telephone, often located in a communal area in the home. More recently, the home has become a place for high-definition “smart” televisions, intelligent multifunction set-top boxes, game consoles, digital radio, high-speed broadband, cabled and wireless home networks, mobile computing, cloud connections, online government service provision, gesture-controlled games, and much more. How and why have these technologies been appropriated? How has this ongoing appropriation reconfigured the domestic media ecology and the life that is lived within this ecology?

2014 ◽  
Vol 1049-1050 ◽  
pp. 2020-2023
Author(s):  
Min Wang ◽  
Hao Zhang

60GHz wireless communication is a promising technology for multi-gigabit communication in future home networks. It brings possibility of achieving in-door high-definition multimedia applications with high-speed and low-delay experience. However, to maintain the network connectivity with 60GHz links, which are susceptible to propagation and penetration losses, is a major challenge. The quality and robustness of 60GHz links can be effectively improved by employing relay nodes or cooperative nodes in the network. In this paper, taking into consideration the directional transmission character of 60GHz system, we conduct performance analysis and simulations for the 60GHz cooperative communication system. Two cooperative forwarding approaches are analyzed and compared, and the optimal position of the cooperative relay node is proposed.


2011 ◽  
Vol 57 (1) ◽  
pp. 53-61 ◽  
Author(s):  
Victor Miguel ◽  
Julian Cabrera ◽  
Fernando Jaureguizar ◽  
Narciso Garcia

2003 ◽  
Vol 7 (2) ◽  
pp. 3-5 ◽  
Author(s):  
Theodore B. Zahariadis ◽  
Apostolis K. Salkintzis

Author(s):  
Chun-Ting Chou

The multimedia content is migrating promptly from standard quality to high-definition and even 3D. As a result, existing wireless technologies can no longer support multimedia streaming as their wired counterparts. To overcome this problem, new wireless technologies that support multi Gbps wireless transmission are desperately needed. In this chapter, we focus on the promising 60 GHz technology and investigate two important standards including ECMA-387 and IEEE 802.11ad standards. Key designs of the two standards are discussed and qualitatively evaluated. Based on our evaluation, one can select the solution that suits best for the targeted applications.


Author(s):  
Christos Bouras ◽  
Anastasios Bikos ◽  
Dimitrios Bilios ◽  
Antonios Alexiou

The recent emergence of ultra-high-speed and high-definition data and video services has pushed wireless network capacity to its limits. Cellular network capacity is therefore a valuable resource, whereas indoor coverage poses itself as a challenging issue. At the same time, real-world paradigms of multimedia transmission require effective Quality-of-Service (QoS) provisioning as well as power admission. To confront issues like delay-sensitive QoS requirements and traffic provisioning, as well as meet the mobile customer needs, this paper presents a traffic-aware Orthogonal Frequency-Division Multiple-Access (OFDMA) hybrid small-cell deployment for QoS provisioning and an optimal admission control strategy for 4G cellular systems. The traffic awareness in the proposed framework is provided by a utility function, which differentiates the traffic QoS levels with the user's grouping priority indexes, channel conditions, and traffic characteristics. To further enhance the proposed framework, an admission power control algorithm based on an efficient algorithm handover is also proposed.


2000 ◽  
Vol 39 (04/05) ◽  
pp. 353-355 ◽  
Author(s):  
T. Takahashi ◽  
T. Kiuchi

Abstract:In Japan, a high speed, bidirectional digital satellite communication system called Medical Information Network by Communications Satellite for University Hospitals is currently available in 30 national universities, and many programs, including clinical conferences, lectures and tutorials, have been broadcasted. Its characteristics are: (1) a state-of-the-art digital high-definition television system, (2) excellent security protection using digital encryption (3) bidirectional communications using two satellite circuits simultaneously, and (4) easy operability. High-quality motion images, and security protection mechanisms are essential for use in clinical medicine.


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