Triple-Band Scheduling with Millimeter Wave and Terahertz Bands for Wireless Backhaul

TL;DR

This paper proposes a triple-band scheduling scheme for wireless backhaul that leverages millimeter wave and Terahertz bands to support diverse QoS requirements, maximizing flow satisfaction and system throughput.

Contribution

It introduces a novel triple-band scheduling scheme that optimally allocates flows across three high-frequency bands, improving network performance for 5G small cell backhaul.

Findings

Outperforms baseline schemes in completed flows

Achieves higher system throughput

Effectively supports diverse QoS requirements

Abstract

With the explosive growth of mobile traffic demand, densely deployed small cells underlying macrocells have great potential for 5G and beyond wireless networks. In this paper, we consider the problem of supporting traffic flows with diverse QoS requirements by exploiting three high frequency bands, i.e., the 28GHz band, the E-band, and the Terahertz (THz) band. The cooperation of the three bands is helpful for maximizing the number of flows with their QoS requirements satisfied. To solve the formulated nonlinear integer programming problem, we propose a triple-band scheduling scheme which can select the optimum scheduling band for each flow among three different frequency bands. The proposed scheme also efficiently utilizes the resource to schedule flow transmissions in time slots. Extensive simulations demonstrate the superior performance of the proposed scheme over three baseline schemes with respect to the number of completed flows and the system throughput.