18 citations · 31 across the 11 of their papers we have counts for
11 papers
Closed-form max-min power control for some cellular and cell-free massive MIMO networks
Lorenzo Miretti, Renato L. G. Cavalcante, Slawomir Stanczak +3
Many common instances of power control problems for cellular and cell-free massive MIMO networks can be interpreted as max-min utility optimization problems involving affine interf…
Unsupervised Learning of Adaptive Codebooks for Deep Feedback Encoding in FDD Systems
Nurettin Turan, Michael Koller, Samer Bazzi +2
In this work, we propose a joint adaptive codebook construction and feedback generation scheme in frequency division duplex (FDD) systems. Both unsupervised and supervised deep lea…
Limits of Transmit and Receive Array Gain in Massive MIMO
Tobias Laas, Josef A. Nossek, Wen Xu
In this paper, we consider the transmit and receive antenna array gain of massive MIMO systems. In particular, we look at their dependence on the number of antennas in the array, a…
Sign-Bit Shaping Using Polar Codes
Onurcan İşcan, Ronald Böhnke, Wen Xu
A new polar coding scheme for higher order modulation is presented. The proposed scheme is based on multi-level coding (MLC) with natural labeling, where the bit-level correspondin…
Finite-Precision Implementation of Arithmetic Coding Based Distribution Matchers
Marcin Pikus, Wen Xu, Gerhard Kramer
A distribution matcher (DM) encodes a binary input data sequence into a sequence of symbols with a desired target probability distribution. Several DMs, including shell mapping and…
On Reciprocity in Physically Consistent TDD Systems with Coupled Antennas
Tobias Laas, Josef A. Nossek, Samer Bazzi +1
We consider the reciprocity of the information-theoretic channel of Time Division Duplex (TDD) Multi-User-Multiple Input Multiple Output (MU-MIMO) systems in the up- and downlink.…
Arithmetic Coding Based Multi-Composition Codes for Bit-Level Distribution Matching
Marcin Pikus, Wen Xu
A distribution matcher (DM) encodes a binary input data sequence into a sequence of symbols (codeword) with desired target probability distribution. The set of the output codewords…
Probabilistically Shaped Multi-Level Coding with Polar Codes for Fading Channels
Onurcan İşcan, Ronald Böhnke, Wen Xu
A probabilistic shaping method for multi-level coding (MLC) is presented, where the transmitted symbols are forced to have a shaped non-uniform distribution. It is shown that shapi…
Polar Codes with Integrated Probabilistic Shaping for 5G New Radio
Onurcan İşcan, Wen Xu
A modification to 5G New Radio (NR) polar code is proposed, which improves the error correction performance with higher order modulation through probabilistic shaping. The presente…
On the Beamformed Broadcast Signaling for Millimeter Wave Cell Discovery: Performance Analysis and Design Insight
Yilin Li, Jian Luo, Mario Castaneda +3
Availability of abundant spectrum has enabled millimeter wave (mm-wave) as a prominent candidate solution for the next generation cellular networks. Highly directional transmission…
Modeling the Evolution of Line-of-Sight Blockage for V2V Channels
Mate Boban, Xitao Gong, Wen Xu
We investigate the evolution of line of sight (LOS) blockage over both time and space for vehicle-to-vehicle (V2V) channels. Using realistic vehicular mobility and building and fol…