In this paper, we study the concept and potentials of integrated access backhaul (IAB) as one main innovative aspects 5G networks. We IAB networks from different perspectives. Particularly, summarize recent Rel-16 discussions on IAB, highlight IAB-specific agreements protocol layers. Moreover, present simulations proof-of-concept testbed results to evaluate performance in both urban suburban ar...

Abstract—Popular content caching is expected to play a major role in efficiently reducing backhaul congestion and achieving user satisfaction in next generation mobile radio systems. Consider the downlink of a cache-enabled cloud radio access network (CRAN), where each cache-enabled base-station (BS) is equipped with limited-size local cache storage. The central computing unit (cloud) is connec...

Explosive data traffic growth leads to a continuous surge in capacity demands across mobile networks. In order to provision high network capacity, small cell base stations (SCBSs) are widely deployed. Owing to the close proximity to mobile users, SCBSs can effectively enhance the network capacity and offloading traffic load from macro BSs (MBSs). However, the cost-effective backhaul may not be ...

Coordinated Multipoint Transmission (CoMP) has been recognized as an effective technique to address the high system requirements in 4G systems. It is considered as a tool to improve the cell edge performance and Inter-cell Interference (ICI) mitigation. The gains of CoMP come at the expense of increased backhaul signaling overhead and system computational complexity. In this paper we propose a ...

This paper focuses on edge caching in dense heterogeneous cellular networks (HetNets), in which small base stations (SBSs) with limited cache size store the popular contents, and massive multiple-inputmultiple-output (MIMO) aided macro base stations provide wireless self-backhaul when SBSs require the non-cached contents. Our aim is to address the effects of cell load and hit probability on the...

A centralized optical processing unit (COPU) that functions both as a wavelength converter (WC) and optical burst equaliser in a 10 Gb/s wavelength-converting optical access network is proposed and experimentally characterized. This COPU is designed to consolidate drifting wavelengths generated with an uncooled laser in the upstream direction into a stable wavelength channel for WDM backhaul tr...

This paper describes a biased random-key genetic algorithm for a real-world wireless backhaul network design problem. This is a novel problem, closely related to variants of the Steiner tree problem and the facility location problem. Given a parameter h, we want to build a forest where each tree has at most h hops from the demand nodes, where traffic originates, to the root nodes where each tre...

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Parth Amin Name of the doctoral dissertation Self-Organizing Radio Resource Management and Backhaul Dimensioning for Cellular Networks Publisher School of Science Unit Computer Science and Engineering Series Aalto University publication series DOCTORAL DISSERTATIONS 107/2014 Field of research Computer Science and Engineering M...