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 …

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 …

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 …

In this paper, we study the problem of activity detection (AD) in a massive MIMO setup,
where the Base Station (BS) has M≫ 1 antennas. We consider a block fading channel …

This article considers the massive MIMO unsourced random access problem on a quasi-
static Rayleigh fading channel. Given a fixed message length and a prescribed number of …

This two-part paper considers an uplink massive device communication scenario in which a
large number of devices are connected to a base station (BS), but user traffic is sporadic so …

This paper considers a massive random access problem in which a large number of
sporadically active devices wish to communicate with a base station (BS) equipped with …

This paper considers sparse device activity detection for cellular machine-type
communications with non-orthogonal signatures using the approximate message passing …

We consider the unsourced random access problem on a Rayleigh block-fading AWGN
channel with multiple receive antennas. Specifically, we treat the slow fading scenario …

This paper considers a grant-free random access scenario for massive machine-type
communications (mMTC) in which the devices are sporadically active with small payloads …