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86
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ICC
2007
IEEE
122views Communications» more  ICC 2007»
15 years 9 months ago
Code-Aided ML Ambiguity Resolution
Abstract— This paper deals with code-aided (CA) maximumlikelihood (ML) phase and timing ambiguity resolution. We propose a methodology based on the sum-product algorithm (SPA) to...
Cédric Herzet, Luc Vandendorpe
APPROX
2007
Springer
102views Algorithms» more  APPROX 2007»
15 years 9 months ago
Hardness of Embedding Metric Spaces of Equal Size
Abstract. We study the problem embedding an n-point metric space into another n-point metric space while minimizing distortion. We show that there is no polynomial time algorithm t...
Subhash Khot, Rishi Saket
97
Voted
GLOBECOM
2006
IEEE
15 years 9 months ago
Requirements and Challenges in the Design of Privacy-aware Sensor Networks
Abstract— Sensor networks are set to become a truly ubiquitous technology that will affect the lives of the people in their application environment. While providing the opportuni...
Efthimia Aivaloglou, Stefanos Gritzalis, Charalabo...
228
Voted
APPROX
2005
Springer
131views Algorithms» more  APPROX 2005»
15 years 9 months ago
Approximation Schemes for Node-Weighted Geometric Steiner Tree Problems
Abstract. In this paper we introduce a new technique for approximation schemes for geometrical optimization problems. As an example problem, we consider the following variant of th...
Jan Remy, Angelika Steger
112
Voted
COCOON
2005
Springer
15 years 9 months ago
Opportunistic Data Structures for Range Queries
Abstract In this paper, we study the problem of supporting range sum queries on a compressed sequence of values. For a sequence of n k-bit integers, k ≤ O(log n), our data struct...
Chung Keung Poon, Wai Keung Yiu