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12 papers · 2 filters
Two Models for Noisy Feedback in MIMO Channels
Vaneet Aggarwal, Gajanana Krishna, Srikrishna Bhashyam +1
Two distinct models of feedback, suited for FDD (Frequency Division Duplex) and TDD (Frequency Division Duplex) systems respectively, have been widely studied in the literature. In…
Two-way source coding with a helper
Haim Permuter, Yossi Steinberg, Tsachy Weissman
Consider the two-way rate-distortion problem in which a helper sends a common limited-rate message to both users based on side information at its disposal. We characterize the regi…
Approximate capacity of the two-way relay channel: A deterministic approach
Amir Salman Avestimehr, Aydin Sezgin, David N. C. Tse
We study the capacity of the full-duplex bidirectional (or two-way) relay channel with two nodes and one relay. The channels in the forward direction are assumed to be different (i…
Capacity Regions and Bounds for a Class of Z-interference Channels
Nan Liu, Andrea Goldsmith
We define a class of Z-interference channels for which we obtain a new upper bound on the capacity region. The bound exploits a technique first introduced by Korner and Marton. A c…
Universal Denoising of Discrete-time Continuous-Amplitude Signals
Kamakshi Sivaramakrishnan, Tsachy Weissman
We consider the problem of reconstructing a discrete-time signal (sequence) with continuous-valued components corrupted by a known memoryless channel. When performance is measured…
Exact Matrix Completion via Convex Optimization
Emmanuel J. Candes, Benjamin Recht
We consider a problem of considerable practical interest: the recovery of a data matrix from a sampling of its entries. Suppose that we observe m entries selected uniformly at rand…