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CCR
2007
76views more  CCR 2007»
15 years 7 months ago
Reducing the TCP acknowledgment frequency
Delayed acknowledgments were introduced to conserve network and host resources. Further reduction of the acknowledgment frequency can be motivated in the same way. However, reduci...
Sara Landström, Lars-Åke Larzon
CN
2007
172views more  CN 2007»
15 years 7 months ago
Threshold cryptography in P2P and MANETs: The case of access control
Ad hoc groups, such as peer-to-peer (P2P) systems and mobile ad hoc networks (MANETs) represent recent technological advancements. They support low-cost, scalable and fault-tolera...
Nitesh Saxena, Gene Tsudik, Jeong Hyun Yi
IIE
2006
108views more  IIE 2006»
15 years 7 months ago
Towards the Information Society - the Case of Finnnish Teacher Education
Abstract. The use of Information and Communication Technology (ICT) in education is one important competence that student teacher should develop in their academic studies. To be ca...
Johani Rautopuro, Susanna Pöntinen, Jari Kukk...
IJBC
2006
93views more  IJBC 2006»
15 years 7 months ago
Some Basic Cryptographic Requirements for Chaos-Based Cryptosystems
In recent years, a large amount of work on chaos-based cryptosystems have been published. However many of the proposed schemes fail to explain or do not possess a number of featur...
Gonzalo Álvarez, Shujun Li
JCM
2008
100views more  JCM 2008»
15 years 7 months ago
Four Transmit Diversity Schemes for Coded OFDM Systems with Four Transmit Antennas
We compare four open-loop transmit diversity schemes in a coded Orthogonal Frequency Division Multiplexing (OFDM) system with four transmit antennas, namely cyclic shift diversity ...
Chau Yuen, Yan Wu, Sumei Sun