Analysis and Design of Distributed MIMO Networks with a Wireless Fronthaul
Hussein A. Ammar, Raviraj Adve, Shahram Shahbazpanahi, Gary Boudreau

TL;DR
This paper analyzes distributed wireless networks with remote radio heads, comparing multicast and zero forcing fronthaul solutions, optimizing RRH placement, and quantifying their impact on network performance.
Contribution
It introduces a statistical model for fronthaul rate, formulates a location optimization problem with outage constraints, and compares multicast and ZF beamforming approaches.
Findings
ZF beamforming improves access rate by ~8% over multicast.
Fronthaul bandwidth needs are high for joint user service, but can be reduced by limiting users per RB.
Optimal RRH antenna distribution depends on the fronthaul method used.
Abstract
We consider the analysis and design of distributed wireless networks wherein remote radio heads (RRHs) coordinate transmissions to serve multiple users on the same resource block (RB). Specifically, we analyze two possible multiple-input multiple-output wireless fronthaul solutions: multicast and zero forcing (ZF) beamforming. We develop a statistical model for the fronthaul rate and, coupled with an analysis of the user access rate, we optimize the placement of the RRHs. This model allows us to formulate the location optimization problem with a statistical constraint on fronthaul outage. Our results are cautionary, showing that the fronthaul requires considerable bandwidth to enable joint service to users. This requirement can be relaxed by serving a low number of users on the same RB. Additionally, we show that, with a fixed number of antennas, for the multicast fronthaul, it is…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsAdvanced MIMO Systems Optimization · Cooperative Communication and Network Coding · Antenna Design and Analysis
