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GLOBECOM
2010
IEEE
13 years 6 months ago
Packet-Reliability-Based Decode-and-Forward Distributed Space-Time Shift Keying
Motivated by the recent concept of Space-Time Shift Keying (STSK), we propose a novel cooperative STSK scheme, which is capable of achieving a flexible rate-diversity tradeoff, in ...
Shinya Sugiura, Sheng Chen, Lajos Hanzo
TIT
2010
163views Education» more  TIT 2010»
13 years 2 months ago
Power-controlled feedback and training for two-way MIMO channels
Most communication systems use some form of feedback, often related to channel state information. The common models used in analyses either assume perfect channel state information...
Vaneet Aggarwal, Ashutosh Sabharwal
STOC
2005
ACM
112views Algorithms» more  STOC 2005»
14 years 8 months ago
The complexity of agreement
A celebrated 1976 theorem of Aumann asserts that honest, rational Bayesian agents with common priors will never "agree to disagree": if their opinions about any topic ar...
Scott Aaronson
IMA
2009
Springer
139views Cryptology» more  IMA 2009»
14 years 2 months ago
Security of Cyclic Double Block Length Hash Functions
Abstract. We provide the first proof of security for Abreast-DM, one of the oldest and most wellknown constructions for turning a block cipher with n-bit block length and 2n-bit k...
Ewan Fleischmann, Michael Gorski, Stefan Lucks
CRYPTO
2003
Springer
132views Cryptology» more  CRYPTO 2003»
14 years 1 months ago
On Cryptographic Assumptions and Challenges
We deal with computational assumptions needed in order to design secure cryptographic schemes. We suggest a classi£cation of such assumptions based on the complexity of falsifying...
Moni Naor