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ICASSP
2009
IEEE
13 years 3 months ago
Minimum BER beamforming in the RF domain for OFDM transmissions and linear receivers
In this paper, we study transmission schemes for a novel OFDMbased MIMO system which performs adaptive signal combining in radio-frequency (RF). Specifically, we consider the prob...
Javier Vía, Victor Elvira, Ignacio Santamar...
SIGMOD
1995
ACM
132views Database» more  SIGMOD 1995»
13 years 8 months ago
Efficient Optimistic Concurrency Control Using Loosely Synchronized Clocks
This paper describes an efficient optimistic concurrency control scheme for use in distributed database systems in which objects are cached and manipulated at client machines whil...
Atul Adya, Robert Gruber, Barbara Liskov, Umesh Ma...
SPAA
2005
ACM
13 years 10 months ago
Randomization does not reduce the average delay in parallel packet switches
Switching cells in parallel is a common approach to build switches with very high external line rate and a large number of ports. A prime example is the parallel packet switch (in...
Hagit Attiya, David Hay
ICDCS
2007
IEEE
13 years 9 months ago
GeoGrid: A Scalable Location Service Network
This paper presents GeoGrid, a geographical location service overlay network system, for providing scalable location-based services to a large and growing number of mobile users. ...
Jianjun Zhang, Gong Zhang, Ling Liu
ICDCS
2008
IEEE
13 years 11 months ago
Mobility-Assisted Spatiotemporal Detection in Wireless Sensor Networks
Wireless sensor networks (WSNs) deployed for missioncritical applications face the fundamental challenge of meeting stringent spatiotemporal performance requirements using nodes w...
Guoliang Xing, Jianping Wang, Ke Shen, Qingfeng Hu...