School of Electrical, Computer and Energy Engineering
PhD Final Oral Defense
Design and Performance Analysis of Fiber Wireless networks
by
Po-Yen Chen
October 30 2015
11:00 AM
GWC 208
Committee:
Dr. Martin Reisslein (chair)
Dr. Yanchao Zhang
Dr. Lei Ying
Dr. Patrick Seeling
Abstract
A Fiber-Wireless (FiWi) network integrates a passive optical network (PON) with
wireless mesh networks (WMNs) to provide high speed backhaul via the PON while
offering the flexibility and mobility of a WMN. Generally, increasing the size of a WMN
leads to higher wireless interference and longer packet delays. The parttioning of a large
WMN into several smaller WMN clusters, whereby each cluster is served by an Optical
Network Unit (ONU) of the PON, is examined. Existing WMN throughput-delay analysis
techniques considering the mean load of the nodes at a given hop distance from a
gateway (ONU) are unsuitable for the heterogeneous nodal traffic loads arising from
clustering. A simple analytical queuing model that considers the individual node loads to
accurately characterize the throughput-delay performance of a clustered FiWi network is
introduced. The accuracy of the model is verified through extensive simulations. It is
found that with sufficient PON bandwidth, clustering substantially improves the FiWi
network throughput-delay performance by employing the model to examine the impact of
the number of clusters on the network throughput-delay performance. Different traffic
models and network designs are also studied to improve the FiWi network performance.