390 citations · 918 across the 48 of their papers we have counts for
11 papers · 1 filter
Random Access with Opportunity Detection in Wireless Networks
Jinho Choi, Seung-Woo Ko, Koji Yamamoto +1
This letter proposes a novel random medium access control (MAC) based on a transmission opportunity prediction, which can be measured in a form of a conditional success probability…
Federated learning with multichannel ALOHA
Jinho Choi, Shiva Raj Pokhrel
In this paper, we study federated learning in a cellular system with a base station (BS) and a large number of users with local data sets. We show that multichannel random access c…
Gaussian Data-aided Sensing with Multichannel Random Access and Model Selection
Jinho Choi
In this paper, we study data-aided sensing (DAS) for a system consisting of a base station (BS) and a number of nodes, where the BS becomes a receiver that collects measurements or…
Evolutionary Game for Hybrid Uplink NOMA with Truncated Channel Inversion Power Control
Jinho Choi, Jun-Bae Seo
In this paper, we consider hybrid uplink nonorthogonal multiple access (NOMA) that can support more users by exploiting the notion of power-domain NOMA. In hybrid uplink NOMA, we d…
Matched-Filter based Backscatter Communication for IoT Devices over Ambient OFDM Carrier
Jinho Choi
In this paper, we study backscatter communication (BC) for power-limited devices that are connected to a network for the Internet of Things (IoT), where joint estimation and detect…
Relay-aided Random Access for Energy-Limited Devices in the IoT
Jinho Choi
In the Internet-of-Things (IoT), random access is employed for devices to share a common access channel in packet transmission with low signaling overhead. Although a retransmissio…
Opportunistic NOMA for Uplink Short-Message Delivery with a Delay Constraint
Jinho Choi
In this paper, we study the application of opportunistic non-orthogonal multiple access (NOMA) mode to short-message transmissions with user's power control under a finite power bu…
A Cross-Layer Approach to Data-aided Sensing using Compressive Random Access
Jinho Choi
In this paper, data-aided sensing as a cross-layer approach in Internet-of-Things (IoT) applications is studied, where multiple IoT nodes collect measurements and transmit them to…
Single-Carrier Index Modulation for IoT Uplink
Jinho Choi
For the Internet of Things (IoT), there might be a large number of devices to be connected to the Internet through wireless technologies. In general, IoT devices would have various…
On Error Rate Analysis for URLLC over Multiple Fading Channels
Jinho Choi
In this paper, we study ultra-reliable and low-latency communication (URLLC) under fading using multiple frequency or time bins. We investigate an approach to find an upper-bound o…
Compressive random access with multiple resource blocks and fast retrial
Jinho Choi
In this paper, we propose a compressive random access (CRA) scheme using multiple resource blocks (RBs) to support massive connections for machine type communications (MTC). The pr…