Browse by Subject "wireless sensor networks"

  • Huang, Wenxun (2011-12)
    Time synchronization is an important service in a wireless sensor network. Many applications require accurate synchronization to coordinate actions or time stamp events. An accurate synchronization across the network ...
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  • Huang, Wenxun (2011-12)
    Time synchronization is an important service in a wireless sensor network. Many applications require accurate synchronization to coordinate actions or time stamp events. An accurate synchronization across the network ...
    untranslated PDF (572KB)Restricted to U of Illinois
  • Trower, Matt (2010-05)
    Past work has given rise to many wireless sensor network (WSN) protocols designed for low power consumption and varying network densities. NPM is a new approach which allows for low power consumption without sacrificing ...
    untranslated PDF (624KB)Restricted to U of Illinois
  • He, Wenbo; Liu, Xue; Nguyen, Hoang; Nahrstedt, Klara; Abdelzaher, Tarek F. (2006-09)
    A wireless sensor network (WSN) is an ad-hoc network composed of small sensor nodes deployed in large numbers to sense the physical world. Wireless sensor networks have very broad application prospects including both ...
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  • Linderman, Lauren E.; Mechitov, Kirill A.; Spencer, Billie F., Jr. (Newmark Structural Engineering Laboratory. University of Illinois at Urbana-Champaign., 2011-06)
    Wireless smart sensor networks have become an attractive alternative to traditional wired sensor systems in order to reduce implementation costs of structural health monitoring systems. The onboard sensing, computation, ...
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  • Kwon, YoungMin; Mechitov, Kirill; Sundresh, Sameer; Kim, Wooyoung; Agha, Gul A. (2004-06)
    A process which computes the physical locations of nodes in a wireless sensor network is called localization. Self-localization is critical for large-scale sensor networks because manual or assisted localization is often ...
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  • Mechitov, Kirill A. (2012-02-06)
    In the late 1990s, advances in sensing and computer technology have enabled the development of tiny, inexpensive, low-power wireless sensor platforms. By integrating sensing, communication, and computational capabilities, ...
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  • He, Wenbo; Nguyen, Hoang; Liu, Xue; Nahrstedt, Klara; Abdelzaher, Tarek F. (2006-11)
    Data aggregation is an efficient mechanism to collect statistics of data in wireless sensor networks. However, the shared-medium nature of communication facilitates eavesdropping and packet tampering/injection by adversaries. ...
    untranslated PDF (187KB)
  • Keating, Ryan (2013-05)
    We propose that free space optical communication with the use of LEDs is not only a viable communication option but can provide significant gains over communicating with radio frequency (RF) in certain situations. The ...
    untranslated PDF (272KB)Restricted to U of Illinois
  • Zheng, Rong; He, Guanghui; Gupta, Indranil; Hou, Jennifer C.; Sha, Lui (2004-04)
    Time attribute is one of the most important attributes of time series data generated in wireless sensor networks. Coupled with energy, bandwidth, computational constraints of wireless sensors, efficient mechanisms need to ...
    untranslated PDF (382KB)
  • Zhang, Honghai (2005-08)
    In this PhD thesis, we study the fundamental limits of the network performance with respect to coverage, connectivity, lifetime, power, energy, and capacity in wireless sensor networks. An interesting finding is that ...
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