Dynamic waveform : power adaptation in wireless LANs, 2002

Item — Call Number: MU Thesis Gre

Identifier: b2125205

Staff Only

Scope and Contents

From the Collection:

The collection consists of theses written by students enrolled in the Monmouth University graduate Computer Science program. The holdings are primarily bound print documents that were submitted in partial fulfillment of requirements for the Master of Science degree.

Dates

Creation: 2002

Creator

Green, David Bennett (Author, Person)
Obaidat, Mohammad S. (Mohammad Salameh), 1952- (Thesis advisor, Person)

Conditions Governing Access

The collection is open for research use. Access is by appointment only.

Access to the collection is confined to the Monmouth University Library and is subject to patron policies approved by the Monmouth University Library.

Collection holdings may not be borrowed through interlibrary loan.

Research appointments are scheduled by the Monmouth University Library Archives Collections Manager (723-923-4526). A minimum of three days advance notice is required to arrange a research appointment for access to the collection.

Patrons must complete a Researcher Registration Form and provide appropriate identification to gain access to the collection holdings. Copies of these documents will be kept on file at the Monmouth University Library.

Extent

1 Items (print book) : 209 pages ; 8.5 x 11.0 inches (28 cm).

Language of Materials

English

Additional Description

Abstract

This thesis presents a method for dyamically setting 802.11 wireless LAN waveforms and transmission power levels based on the wireless channel's signal to noise ratio. Simulation models were developed to study the performance of our media access control (MAC) protocol, SNR-WPA (Signal to Noise Ratio-Waveform Power Adaptation), and compare the performance to a baseline wireless LAN MAC. SNR-WPA method is shown to increase the throughput and range while decreasing the packet delay for wireless LAN networks including Mobile Ad-hoc Networks (MANETs). Unlike other power adaptation models, this method does not increase the WLAN station's overall effective operational range and will cause minimum changes to WLAN network's minimum spanning tree used to calculate routing. By avoiding perturbation of the minimum-spannng tree, we can avoid generating 'new link' routing messages and create a power adaptation method especially suitable for MANETs using link-state routing. We found through experimentation that the power adaptation in SNR-WPA yields up to a 50% increase in throughput in a mobile wireless LAN network.

Partial Contents

1. Introduction -- 2. Background and literature review -- 3. Objectives and methodology -- 4. Analysis techniques -- 5. Experimental MAC protocol -- 6. Results and discussion -- 7. Conclusions and recommendations -- References -- Appendix A. Definitions of terms and acronyms -- Appendix B. SNR-WPA MAC OPNET Code (C++).