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» Some codes related to BCH-codes of low dimension
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DM
1999
61views more  DM 1999»
13 years 10 months ago
Some codes related to BCH-codes of low dimension
We construct a large number of record-breaking binary, ternary and quaternary codes. Our methods involve the study of BCH-codes over larger fields, concatenation, construction X a...
Yves Edel, Jürgen Bierbrauer
ISLPED
1997
ACM
110views Hardware» more  ISLPED 1997»
14 years 2 months ago
A one division per clock pipelined division architecture based on LAPR (lookahead of partial-remainder) for low-power ECC applic
We propose a pipelined division architecture for low-power ECC applications, which is based on partialdivision on group basis and lookahead technique exploiting the linearity in f...
Hyung-Joon Kwon, Kwyro Lee
CORR
2006
Springer
127views Education» more  CORR 2006»
13 years 11 months ago
On the Peak-to-Mean Envelope Power Ratio of Phase-Shifted Binary Codes
The peak-to-mean envelope power ratio (PMEPR) of a code employed in orthogonal frequencydivision multiplexing (OFDM) systems can be reduced by permuting its coordinates and by rot...
Kai-Uwe Schmidt
FOCS
2004
IEEE
14 years 2 months ago
Hardness of Approximating the Shortest Vector Problem in Lattices
Let p > 1 be any fixed real. We show that assuming NP RP, there is no polynomial time algorithm that approximates the Shortest Vector Problem (SVP) in p norm within a constant ...
Subhash Khot
AACC
2004
Springer
14 years 4 months ago
Using Document Dimensions for Enhanced Information Retrieval
Conventional document search techniques are constrained by attempting to match individual keywords or phrases to source documents. Thus, these techniques miss out documents that co...
Thimal Jayasooriya, Suresh Manandhar