a study on the spectrum efficient multi-hop wireless network

A Study on the Spectrum Efficient Multi-hop Wireless
Network
Wadhah Hafidh Ali Al Mandhari
Abstract
The field of multi-hop wireless networks has evolved rapidly in the past few years.
These networks provide an extended coverage through multi-hop while maintaining the
ease of setup and deployment. With such features, it quickly emerge as an attractive and
appealing solution for wireless connectivity in many communication fields.
Applications ranges from simple data sharing to a wireless backbone network links,
multi-hop wireless networks rises as a strong contender for any kind of environment.
The term “Green Communications” became a popular field of research due to the
desire to save energy consumption in the field of Communications. Furthermore,
communication systems are expected to save energy of various industrial systems. The
multi-hop wireless network is useful for such requirements.
Recent development and decrease in manufacturing costs, more advanced equipment
(requires less power to operate) are used to route data using intelligent wireless
multi-hop network. However, due to the shared resources architecture, the wireless
networks face a lot of challenges. Achieving the desired capacity is one of the most
important and most difficult targets.
This research focuses on performance enhancement of two wireless multi-hop
network categories, Ad-hoc networks and Wireless Mesh Networks (WMN). In the
simulated Ad-hoc networks, an improvement of nearly 90% in the Packet Delivery Rate
(PDR) was achieved as a result of reducing the route state hold time parameter in the
AODV routing protocol at different station movement speeds. Moreover, the same
parameter resulted in a nearly 50% reduction in the end-to-end delay for a stationary
Ad-hoc network.
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