Throughput Analysis for Relay-Assisted Millimeter-Wave Wireless Networks

TL;DR

This paper analyzes the throughput of relay-assisted millimeter-wave wireless networks with multipacket reception, comparing broadcast and directional transmission strategies and identifying optimal configurations based on system parameters.

Contribution

It introduces a comprehensive throughput analysis considering multipacket reception, full-duplex relays, and beam strategies, providing insights into optimal transmission approaches.

Findings

Broadcast approach can outperform directional transmission under certain conditions.

Optimal strategy depends on node positions and system parameters.

Inter-beam interference significantly affects network throughput.

Abstract

In this work, we analyze the throughput of random access multi-user relay-assisted millimeter-wave wireless networks, in which both the destination and the relay have multipacket reception capability. We consider a full-duplex network cooperative relay that stores the successfully received packets in a queue, for which we analyze the performance. Moreover, we study the effects on the network throughput of two different strategies, by which the source nodes transmit either a packet to both the destination and the relay in the same timeslot by using wider beams (broadcast approach) or to only one of these two by using narrower beams (fully directional approach). We consider the inter-beam interference at the receiver and show the optimal strategy with respect to several system parameters, e.g., positions and number of the nodes.