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GLOBECOM
2007
IEEE
16 years 1 months ago
Position Estimation Error in Edge Detection for Wireless Sensor Networks using Local Convex View
Abstract—Intuitively, identification of nodes close to the network edge is key to the successful setup, and continued operation, of many sensor network protocols and application...
Marwan Fayed, Hussein T. Mouftah
ICC
2007
IEEE
118views Communications» more  ICC 2007»
16 years 1 months ago
A Class of LDPC Erasure Distributions with Closed-Form Threshold Expression
— In this paper, a family of low-density parity-check (LDPC) degree distributions, whose decoding threshold on the binary erasure channel (BEC) admits a simple closed form, is pr...
Enrico Paolini, Marco Chiani
ICC
2007
IEEE
149views Communications» more  ICC 2007»
16 years 1 months ago
Synchronization Signal Design for OFDM Based On Time-Frequency Hopping Patterns
— In an OFDM system, channel estimation can be considered as sampling the time-frequency response of the channel through a number of known pilot symbols placed across the time-fr...
Jiann-Ching Guey
CSR
2007
Springer
16 years 1 months ago
Ruling Out Polynomial-Time Approximation Schemes for Hard Constraint Satisfaction Problems
The maximum constraint satisfaction problem (Max CSP) is the following computational problem: an instance is a finite collection of constraints on a set of variables, and the goal...
Peter Jonsson, Andrei A. Krokhin, Fredrik Kuivinen
FOSAD
2007
Springer
16 years 1 months ago
Secure Service Orchestration
Abstract. We present a framework for designing and composing services in a secure manner. Services can enforce security policies locally, and can invoke other services in a “call...
Massimo Bartoletti, Pierpaolo Degano, Gian Luigi F...