229 citations · 531 across the 15 of their papers we have counts for
5 papers · 1 filter
Grant-Free Massive Random Access With a Massive MIMO Receiver
Alexander Fengler, Saeid Haghighatshoar, Peter Jung +1
We consider the problem of unsourced random access (U-RA), a grant-free uncoordinated form of random access, in a wireless channel with a massive MIMO base station equipped with a…
Non-Bayesian Activity Detection, Large-Scale Fading Coefficient Estimation, and Unsourced Random Access with a Massive MIMO Receiver
Alexander Fengler, Saeid Haghighatshoar, Peter Jung +1
In this paper, we study the problem of user activity detection and large-scale fading coefficient estimation in a random access wireless uplink with a massive MIMO base station wit…
On the Restricted Isometry Property of Centered Self Khatri-Rao Products
Alexander Fengler, Peter Jung
In this work we establish the Restricted Isometry Property (RIP) of the centered column-wise self Khatri-Rao (KR) products of matrix with iid columns drawn either unifo…
Massive MIMO Unsourced Random Access
Alexander Fengler, Giuseppe Caire, Peter Jung +1
We consider an extension of the massive unsourced random access originally proposed by Polyanskiy to the case where the receiver has a very large number of antennas (a massive MIMO…
SPARCs for Unsourced Random Access
Alexander Fengler, Peter Jung, Giuseppe Caire
Unsourced random-access (U-RA) is a type of grant-free random access with a virtually unlimited number of users, of which only a certain number are active on the same time sl…