16 citations · 23 across the 6 of their papers we have counts for
9 papers
Interpolation-Based QR Decomposition in MIMO-OFDM Systems
Davide Cescato, Helmut Bölcskei
Detection algorithms for multiple-input multiple-output (MIMO) wireless systems based on orthogonal frequency-division multiplexing (OFDM) typically require the computation of a QR…
Optimal Diversity-Multiplexing Tradeoff in Selective-Fading MIMO Channels
Pedro Coronel, Helmut Bölcskei
We establish the optimal diversity-multiplexing (DM) tradeoff of coherent time, frequency, and time-frequency selective-fading multiple-input multiple-output (MIMO) channels and pr…
Selective-Fading Multiple-Access MIMO Channels: Diversity-Multiplexing Tradeoff and Dominant Outage Event Regions
Pedro Coronel, Markus Gärtner, Helmut Bölcskei
We establish the optimal diversity-multiplexing (DM) tradeoff for coherent selective-fading multiple-access MIMO channels and provide corresponding code design criteria. As a bypro…
Soft-Input Soft-Output Single Tree-Search Sphere Decoding
Christoph Studer, Helmut Bölcskei
Soft-input soft-output (SISO) detection algorithms form the basis for iterative decoding. The computational complexity of SISO detection often poses significant challenges for prac…
On the achievable diversity-multiplexing tradeoff in interference channels
Cemal Akçaba, Helmut Bölcskei
We analyze two-user single-antenna fading interference channels with perfect receive channel state information (CSI) and no transmit CSI. For the case of very strong interference,…
Block-Sparsity: Coherence and Efficient Recovery
Yonina C. Eldar, Helmut Bolcskei
We consider compressed sensing of block-sparse signals, i.e., sparse signals that have nonzero coefficients occuring in clusters. Based on an uncertainty relation for block-sparse…