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IWCMC
2006
ACM
14 years 3 months ago
Uplink capacity comparison of non-perfect frequency synchronized cellular OFDM systems
Orthogonal frequency division multiplexing (OFDM) is very sensitive to frequency offsets which result in considerable interference. Performance of the system will be exacerbated ...
Shameem Kabir Chaudhury, Hrishikesh Venkataraman, ...
WCNC
2010
IEEE
14 years 1 months ago
Interference Analysis in Time and Frequency Asynchronous Network MIMO OFDM Systems
—It is well known that symbol timing offsets larger than the cyclic prefix as well as carrier frequency offsets between transmitter and receiver stations destroy the orthogonali...
Vincent Kotzsch, Gerhard Fettweis
DSN
2007
IEEE
14 years 4 months ago
Superscalar Processor Performance Enhancement through Reliable Dynamic Clock Frequency Tuning
Synchronous circuits are typically clocked considering worst case timing paths so that timing errors are avoided under all circumstances. In the case of a pipelined processor, thi...
Viswanathan Subramanian, Mikel Bezdek, Naga Durga ...
STOC
2005
ACM
143views Algorithms» more  STOC 2005»
14 years 10 months ago
Optimal approximations of the frequency moments of data streams
We give a 1-pass ~O(m1-2/k )-space algorithm for computing the k-th frequency moment of a data stream for any real k > 2. Together with the lower bounds of [1, 2, 4], this reso...
Piotr Indyk, David P. Woodruff
SIGECOM
2008
ACM
138views ECommerce» more  SIGECOM 2008»
13 years 9 months ago
Generalized scoring rules and the frequency of coalitional manipulability
We introduce a class of voting rules called generalized scoring rules. Under such a rule, each vote generates a vector of k scores, and the outcome of the voting rule is based onl...
Lirong Xia, Vincent Conitzer