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TIT
2010
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15 years 1 months ago
Asynchronous CDMA systems with random spreading-part II: design criteria
Totally asynchronous code-division multiple-access (CDMA) systems are addressed. In part I, the fundamental limits of asynchronous CDMA systems were analyzed in terms of total cap...
Laura Cottatellucci, Ralf R. Müller, Mé...
TSP
2010
15 years 1 months ago
Double sparsity: learning sparse dictionaries for sparse signal approximation
Abstract--An efficient and flexible dictionary structure is proposed for sparse and redundant signal representation. The proposed sparse dictionary is based on a sparsity model of ...
Ron Rubinstein, Michael Zibulevsky, Michael Elad
TWC
2010
15 years 1 months ago
Maximum-likelihood noncoherent OSTBC detection with polynomial complexity
Abstract--We prove that maximum-likelihood (ML) noncoherent sequence detection of orthogonal space-time block coded signals can always be performed in polynomial time with respect ...
Dimitris S. Papailiopoulos, George N. Karystinos
TWC
2010
15 years 1 months ago
Cellular Systems with Non-Regenerative Relaying and Cooperative Base Stations
In this paper, the performance of cellular networks with joint multicell processing and dedicated relay terminals is investigated. It is assumed that each relay terminal is capable...
Oren Somekh, Osvaldo Simeone, Harold Vincent Poor,...
TWC
2010
15 years 1 months ago
Joint channel estimation and resource allocation for MIMO systems-part II: multi-user and numerical analysis
This is the second part of a two-part paper on the joint channel estimation and resource allocation problem in MIMO systems with noisy channel estimation at the receiver side and p...
Alkan Soysal, Sennur Ulukus