Pilot-based unsourced random access with a massive MIMO receiver, interference cancellation, and power control
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 …
channel with multiple receive antennas. Specifically, we treat the slow fading scenario …
Unsourced random access using multiple stages of orthogonal pilots: MIMO and single-antenna structures
We study the problem of unsourced random access (URA) over Rayleigh block-fading
channels with a receiver equipped with multiple antennas. We propose a slotted structure …
channels with a receiver equipped with multiple antennas. We propose a slotted structure …
Massive unsourced random access: Exploiting angular domain sparsity
This paper investigates the unsourced random access (URA) scheme to accommodate
numerous machine-type users communicating to a base station equipped with multiple …
numerous machine-type users communicating to a base station equipped with multiple …
A slotted pilot-based unsourced random access scheme with a multiple-antenna receiver
We consider unsourced random access over fading channels with a massive number of
antennas at the base station, and propose a simple, yet energy-efficient solution by dividing …
antennas at the base station, and propose a simple, yet energy-efficient solution by dividing …
Unsourced random access with a massive MIMO receiver using multiple stages of orthogonal pilots
We study the problem of unsourced random access (URA) over Rayleigh block-fading
channels with a receiver equipped with multiple antennas. We employ multiple stages of …
channels with a receiver equipped with multiple antennas. We employ multiple stages of …
Unsourced random massive access with beam-space tree decoding
The core requirement of massive Machine-Type Communication (mMTC) is to support
reliable and fast access for an enormous number of machine-type devices (MTDs). In many …
reliable and fast access for an enormous number of machine-type devices (MTDs). In many …
Unsourced multiple access with random user activity
To account for the massive uncoordinated random access scenario, which is relevant for the
Internet of Things, Polyanskiy et al.(2017) proposed a novel formulation of the multiple …
Internet of Things, Polyanskiy et al.(2017) proposed a novel formulation of the multiple …
Scheduling versus contention for massive random access in massive MIMO systems
Massive machine-type communications protocols have typically been designed under the
assumption that coordination between users requires significant communication overhead …
assumption that coordination between users requires significant communication overhead …
Two-phase unsourced random access in massive MIMO: Performance analysis and approximate message passing decoder
JC Jiang, HM Wang - IEEE Transactions on Wireless …, 2023 - ieeexplore.ieee.org
In this paper, we design a novel two-phase unsourced random access (URA) scheme in
massive multiple input multiple output (MIMO). In the first phase, we collect a sequence of …
massive multiple input multiple output (MIMO). In the first phase, we collect a sequence of …
Unsourced random access over frequency-selective channels
We propose and study unsourced random access over frequency-selective channels via
orthogonal frequency division multiplexing, employed to mitigate the channel effects. The …
orthogonal frequency division multiplexing, employed to mitigate the channel effects. The …