On the Optimization and Stability of Sectorized Wireless Networks
Panagiotis Promponas, Tingjun Chen, Leandros Tassiulas

TL;DR
This paper investigates the capacity and stability of sectorized wireless mesh networks, proposing optimization algorithms for node sectorization that significantly enhance network flow and adaptability under dynamic traffic conditions.
Contribution
It introduces a novel capacity characterization, an efficient distributed optimization algorithm with approximation guarantees, and explores dynamic sectorization strategies for improved network performance.
Findings
Sectorization increases network capacity and flow extension ratio.
The proposed algorithms achieve near-optimal sectorization with a 2/3 approximation ratio.
Dynamic sectorization strategies improve stability and capacity under unknown traffic loads.
Abstract
Future wireless networks need to support the increasing demands for high data rates and improved coverage. One promising solution is sectorization, where an infrastructure node is equipped with multiple sectors employing directional communication. Although the concept of sectorization is not new, it is critical to fully understand the potential of sectorized networks, such as the rate gain achieved when multiple sectors can be simultaneously activated. In this paper, we focus on sectorized wireless networks, where sectorized infrastructure nodes with beam-steering capabilities form a multi-hop mesh network. We present a sectorized node model and characterize the capacity region of these sectorized networks. We define the flow extension ratio and the corresponding sectorization gain, which quantitatively measure the performance gain introduced by node sectorization as a function of the…
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Taxonomy
TopicsAdvanced MIMO Systems Optimization · Cooperative Communication and Network Coding · Wireless Networks and Protocols
